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Sample records for del abono verde

  1. Efecto de Mucuna pruriens como abono verde y cobertura, sobre algunas propiedades físicas del suelo

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    Oscar Eduardo Sanclemente-Reyes

    2015-01-01

    Full Text Available Se evaluó el aporte de Mucuna pruriens como abono verde y cobertura muerta con un complemento de fertilización, sobre la estabilidad estructural, el contenido de humedad del suelo y la dinámica de pérdida de suelo por erosión. Se encontró un incrementó máximo en la estabilidad estructural de 0.63 cuando se usó la cobertura muerta, complementada con abono orgánico más fertilizante de síntesis. Al contrario, la aplicación de los tratamientos no tuvo efecto sobre la cantidad de humedad del suelo, ni sobre las pérdidas de suelo debidas a erosión.

  2. PARTICIPACIÓN DEL NITRÓGENO DE LOS ABONOS VERDES EN LA NUTRICIÓN NITROGENADA DEL MAÍZ (Zea mays L.) CULTIVADO SOBRE SUELO FERRALÍTICO ROJO

    OpenAIRE

    Gloria M. Martín; R. Rivera

    2002-01-01

    El presente trabajo se realizó con el objetivo de estudiar la eficiencia del nitrógeno incorporado con los abonos verdes, utilizados como precedente en el cultivo del maíz en un suelo Ferralítico Rojo de La Habana. Para ello, se estudió el grado de participación de diferentes fuentes de nitrógeno (abonos verdes y fertilizante mineral) en la nutrición nitrogenada del maíz, mediante los métodos isotópico y de las diferencias. El experimento se condujo en condiciones de macetas (5 kg) y se estud...

  3. Influencia de abonos verdes sobre la dinámica de nitrógeno en un Typic Haplustert del Valle del Cauca, Colombia

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    Breno Augusto Sosa Rodrígues

    2014-12-01

    Full Text Available Este estudio abordó el metabolismo del N, mediado por prácticas agroecológicas como los abonos verdes (AV, que incluyen leguminosas asociadas con rizobios -micorriza arbuscular y mejoran la nutrición de nitrógeno y fósforo. Se evaluó su influencia en la dinámica del nitrógeno de un Typic Haplustert en Candelaria (Colombia. En bloques completos al azar con seis repeticiones, se asoció como AV Mucuna pruriens L. var. Utilis - Zea mays L. var. ICA 305 (tratamiento 1- T1 y, la arvense nativa Rottboellia cochinchinensis L. como Tratamiento 2 - T2. En prefloración de M. pruriens se evaluó en el suelo el contenido de C orgánico (CO, N total (NT, nitrato, amonio, número de copias de gen amoA de las bacterias oxidantes de amonio (BOA, porosidad total del suelo (PPA, temperatura, flujo de gases con efecto invernadero: metano (CH4, dióxido de carbono (CO2 y óxido nitroso (N2O; la materia seca (MS y el contenido de C, N y P en tejidos vegetales. Se registraron concentraciones significativamente (p<0.05 altas de CO, NT, amonio y nitrato, en T2. BOA fue significativamente mayor en T1, coincidiendo con mayor PPA y menor temperatura del suelo. El CO2 atmosférico fue significativamente menor en T1, mientras que CH4 y N2O alcanzaron los valores más altos. Al finalizar el ensayo, AV en T1 aportó cerca de 4 t MS/ha, 1668.3 kg C/ha, 78.7 kg N/ha y 11.0 kg P/ha, con beneficio económico-social de 9.2 ton choclo/ha.

  4. Evaluación de abonos verdes en el sistema de producción maíz-leguminosas

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    Prager M. Martin

    1989-06-01

    Full Text Available En la primera parte del ensayo, se estudió el comportamiento del peso de nódulos, peso fresco y peso seco de tres leguminosas (Crotalaria, Canavalia y Guandul a utilizar como abonos verdes y su efecto sobre sistemas de producción maíz-leguminosas (maíz-caupí, maíz-soya, maíz-frijol. Las variables consideradas (rendimiento, rendimiento equivalente de maíz, ingreso neto y tasa de retorno marginal mostraron el efecto positivo de esta práctica sobre esta forma de producción obteniéndose mejor respuesta de el sistema maíz-caupí. De los abonos verdes la crotalaria presentó el mejor efecto sobre los sistemas de producción. En la segunda parte del trabajo, se utilizó el sistema de producción de mejor comportamiento introduciendo al factor abono verde algunas modalidades de tratamiento, entre ellas efecto residual, adición de una segunda incorporación de los tres abonos verdes y efecto residual más la adición de abono químico. La consideración de las mismas variables usadas en la primera parte mostro mejores valores por la segunda incorporación de abono verde y la adición de abono químico en su orden, el efecto residual de los abonos permite obtener rendimientos superiores a los alcanzados por el testigo.This research was divided in two parts. The first studies the behavior of three legumes (Crotalaria, Canavalia and Cajanus as green manure, measuring weight nodules, green weight matter and dry weight matter of them, so measured the effect on three production systems: Maize- cowpea, Maize- soybean and Maize-bean. The indicators (yield, equivalent maize yields, net income and marginal return rate showed positive effect of green manure on this production systems too maize-cowpea system showed the best yields; Crotalaria was ,the best green manure. In second experimental stage maize- cowpea system was evaluated, using the same indicators and introducing new treatments related to green manure: its residual effects, addicional

  5. EVALUACIÓN DE ABONOS VERDES EN EL CULTIVO DE YUCA Manihot sculenta Krantz EN UN INCEPTISOL DE LA ZONA DE LADERA DEL DEPARTAMENTO DEL CAUCA, COLOMBIA EVALUATION OF GREEN FERTILIZERS IN CULTIVATION OF CASSAVA Manihot Sculenta Krantz IN AN INCEPTISOL IN A HILLSIDE ZONE OF THE DEPARTMENT OF CAUCA, COLOMBIA

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    Mary Adriana Salazar Rosero

    2004-12-01

    Full Text Available Se evaluó el corte y la distribución en el campo de varios abonos verdes, entre ellos: maíz - fríjol; mucuna; sorgo; millo - fríjol; millo, en un cultivo de yuca ( Manihot sculenta Krantz en un inceptisol de las laderas del Departamento del Cauca (Colombia, analizando los efectos de ellos sobre las propiedades del suelo, su capacidad para interferir la vegetación espontánea no deseable para el cultivo. Respecto a la incidencia sobre las propiedades físico-químicas del suelo, se observó que la porosidad presentó diferencias significativas por efecto de los diferentes abonos verdes evaluados; sobresaliendo la asociación maíz - fríjol. En las propiedades químicas, calcio y magnesio presentaron diferencias significativas, siendo sus contenidos más altos cuando se empleó el abono verde mucuna, sobresaliendo por su capacidad de reciclar estos nutrientes. El sorgo fue el abono verde donde hubo la menor influencia de la vegetación espontánea por su lenta descomposición y también con el cual se obtuvo la mejor productividad del cultivo de yuca (17 t/ha. En general, todos los abonos verdes presentaron adecuadas cualidades para su empleo, como parte de una estrategia de manejo sostenible de este tipo de suelo.The cut and distribution in the field of various green fertilizers, including corn-red beans, mucuna, sorghum, mille- red beans, and mille, in the cultivation of cassava (Manihot sculenta Krantz, was evaluated in an inceptisol in a hillside zone of the Department of Cauca (Colombia, analyzing their effects on the properties of the soil and their capability to inhibit spontaneous vegetation undesirable for the crop. With respect to the physical-chemical properties of the soil, porosity varied significantly due to the effects of the different green fertilizers evaluated, with the corn-red beans mixture excelling. In terms of chemical properties, calcium and magnesium showed significant differences with their concentrations higher

  6. Selección de abonos verdes para los suelos de Turmequé (Boyacá

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    Viteri Silvio

    2008-08-01

    Full Text Available

    El objetivo de este estudio fue identificar asociaciones de abonos verdes con el mejor potencial como fuente de materia orgánica para los suelos del municipio de Turmequé (Boyacá. Los experimentos se desarrollaron en tres fincas, ubicadas a 2.300, 2.650 y 2.860 msnm. De cada finca se tomó una muestra representativa de suelo, que se envió al laboratorio para análisis de fertilidad. Los tratamientos incluyeron 10 asociaciones triples y 3 cuádruples. Las asociaciones se conformaron con la leguminosa vicia atropurpúrea (Vicia sativa L. en combinación con avena caldas (Avena sativa L., girasol (híbrido Hi Doris (Helianthus annus L., higuerilla (Ricinus communis L., nabo forrajero (Raphanus sativus L. o quinua (Chenopodium quinua. El porcentaje de semilla leguminosa respecto a las otras especies en las asociaciones triples fue 40:30:30 y en las cuádruples 40:20:20:20. El porcentaje de semilla de cada especie se calculó con base en la cantidad recomendada para siembra en monocultivo. Se utilizó el diseño de bloques completos al azar, con 13 tratamientos y 3 repeticiones. Las variables determinadas fueron producción de materia verde por especie, por asociación y por las plantas arvenses y materia seca por asociación. Además, se observó la tolerancia de las especies al ataque de plagas y enfermedades. Los resultados indicaron que entre las especies estudiadas las más promisorias son el nabo forrajero, la avena y la vicia, conformando la asociación vicia × avena × nabo forrajero.

  7. fertilizada con diferentes abonos

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    Jorge Alberto Elizondo-Salazar

    2007-01-01

    Full Text Available Producción y calidad de la biomasa de morera (Morus alba fertilizada con diferentes abonos. Se llevó a cabo un experimento en la Estación Experimental “Alfredo Volio Mata” de la Universidad de Costa Rica con el fi n de evaluar la aplicación de 150 kg de N/ha/año proveniente de dos abonos orgánicos: lombriabono y compostaje; y de un fertilizante químico, sobre la producción y calidad de la biomasa de morera. El periodo experimental comprendió un ciclo de 12 meses, iniciando en julio del 2003 y fi nalizando en julio del 2004. Se utilizó una plantación de morera de 12 años de establecida con una densidad de siembra de 27.777 plantas/ ha. Se empleó un diseño de bloques completos al azar con cuatro tratamientos: dos abonos orgánicos, nitrato de amonio (33,5% N y un control. Las plantas se podaron a 0,6 m sobre el nivel del suelo al inicio del ensayo. Durante el periodo experimental, las plantas fueron podadas consecutivamente cada 90 días. Las hojas y los tallos fueron separados y analizados para determinar el contenido de materia seca y proteína cruda. La producción de materia seca fue 23% superior y el contenido de proteína cruda fue signifi cativamente mayor con el nitrógeno químico, mientras que el contenido de materia seca fue menor. No se encontraron diferencias signifi cativas entre el tratamiento control y los tratamientos orgánicos.

  8. EFECTO DE ABONOS ORGÁNICOS A PARTIR DE SUBPRODUCTOS DEL FIQUE EN LA PRODUCCIÓN DE MAÍZ

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    JULIÁN ACOSTA M

    Full Text Available Se evaluaron seis tratamientos de abonos orgánicos elaborados a partir de subproductos del procesamiento de fique (Furcraea gigantea Vent. como alternativa para suplir los requerimientos nutricionales del cultivo de maíz (Zea mays L. en el Municipio de Guaitarilla (Nariño, Colombia. Para la elaboración de los abonos se empleó la técnica Bocashi modificada, evaluando tres relaciones carbono:nitrógeno (10:1, 20:1 y 30:1 y dos fuentes de microorganismos descomponedores (microrganismos efectivos (EM y levadura comercial. Cada tratamiento fue evaluado en campo utilizando un diseño de bloques completos al azar con arreglo factorial donde el factor A correspondió a los diferentes abonos orgánicos (Ta-Tf y el factor B a las dosis de fertilización: 3, 6 y 9 t/ha, adicionalmente se valoró un testigo con fertilización química (Tq y un testigo sin fertilización (To. Como variables de respuesta se estudiaron la altura de la planta (AP, rendimiento (RTO, número de granos por mazorca (GM y peso de cien granos (PC. El mejor tratamiento fue Tb (20:1 + EM, el cual superó de forma significativa (P<0,05 al testigo con fertilización química en las variables: AP, RTO y PC; se concluyó que es posible utilizar el abono orgánico de fique como alternativa de fertilización en la producción de maíz

  9. Radiological Impact Study of the Coal-Fired Power Plant of Abono; Estudio del Impacto Radiologico de la Central Termica de Carbon de Abono

    Energy Technology Data Exchange (ETDEWEB)

    Robles, B.; Baeza, A.; Mora, J. C.; Corbacho, J. A.; Trueba, C.; Guillen, J.; Rodriguez, J.; Miralles, Y.

    2014-04-01

    Coal, fuel used in thermal power plants for electricity production, contains variable concentrations of naturally occurring radionuclides from natural disintegration series of {sup 2}38U, {sup 2}35U, {sup 2}32Th and also the {sup 4}0K, which are enhanced in the wastes and coproducts due to the industrial process. For this reason, natural radionuclides which are part of the noncombustible fraction of coal, except those volatiles which incorporate directly to the flue gases, concentrates and are partitioned between fly ashes and bottom ashes. This enhancement could cause, to the workers of the installation and to members of the public around the plant, an increase in the exposure which should be assessed under the radiation protection point of view. Present report collect the results obtained from a screening assessment of the radiological impact derived from the normal operation of the Abono coal-fired power plant. The project where this assessment was performed is part of a bigger project which is jointly developed by the Unit of Radiation Protection of the Public and the Environment (UPRPYMA) of CIEMAT and the Environmental Radioactivity Laboratory of the Extremadura University (LARUEX) in agreement with the Spanish Association of the Electrical Industry (ENUSA). (Author)

  10. Modelo de Negocio Inclusivo para Producir Biogás y Abono orgánico a partir del Tratamiento Anaeróbico del Lechuguín del Embalse Daule Peripa

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    Espol; Cruz Cruz, Wladimir De La

    2017-01-01

    Esta propuesta es un intraemprendimiento para aportar a la base pirámide mediante un modelo inclusivo que impulse el desarrollo social y económico de las comunidades de la Manga del Cura. Para esto se instalará una planta piloto de biogás para la producción de abono orgánico a partir del proceso anaeróbico del lechuguín del embalse Daule Peripa y su principal objetivo son los agricultores de ástas comunidades. Guayaquil Magíster en Administración de Empresas

  11. Paso del Aguilo : Jarre de type Rio Verde Poli

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    Michelet , Dominique

    1981-01-01

    Zone IV, site n°2. Las Colaciones, Paso del Aguila, municipio Armadillo, San Luis Potosi.Jarre à deux petites anses latérales sous le col, du type Rio Verde Poli. Engobe brun-beige poli. Hauteur totale 13 centimètres. Collection particulière Paso del Aguila.

  12. Selección de abonos verdes para el manejo y rehabilitación de los suelos sulfatados ácidos de Boyacá (Colombia

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    Hernández Dilsa M.

    2006-06-01

    punto vista ambiental y de costos de producción. La presente investigación se realizó entre mayo y diciembre de 2002, con el fin de identificar, por su comportamiento agronómico, especies de abono verde con un alto potencial como fuente alternativa de materia orgánica para el manejo y rehabilitación de SSA. Las especies  evaluadas fueron avena ‘Cajicá’ y ‘Cayuse’ (Avena sativa L., centeno(Cecalecereale, girasol(HelianthusannusL., maíz forrajero(Zeamays, naboforrajero(RaphanussativusL. var. OleiferusMetzg, quinua(Chenopodiumquinoa Wild,  remolacha forrajera (Beta vulgaris L., rábano forrajero (Raphanusraphanistrum yvicia(ViciasativaL.. Eldiseño experimental utilizado fue  el de bloques completos al azar, con 10 tratamientos y 4 repeticiones. Las variablesdeterminadasfueron: porcentajedegerminacióny de cobertura, altura de planta, desarrollo de raíces, número de plantas de las especies y de arvenses y producción de materia fresca y seca. Los resultados indicaron  que las especies de mayor potencial para el manejo y rehabilitación de SSA fueron el nabo forrajero y el rábano forrajero, seguidas, en segundo lugar, por las avenas ‘Cajicá’ y ’Cayuse’ y, en tercer lugar, por centeno, girasol y vicia. El maíz forrajero, la quinua y la remolacha  forrajera no mostraron ningún potencial. Esta es una primerainvestigaciónrespecto alaidentificacióndeespecies de abono verde con potencial para el manejo y recuperación de los SSA de  Boyacá.

  13. Evaluación de seis abonos verdes en un vertisol ústico en condiciones del Valle del Cauca

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    Bonilla C. C. R.

    2004-12-01

    Full Text Available En el Centro Experimental de la Universidad Nacional de Colombia-Sede Palmira, en un diseño de bloques completos al azar, se evaluaron seis tratamientos con tres repeticiones. (Cajanus cajan guandul arbóreo y arbustivo; Canavalia ensiformis, fríjol Canavalia; Cynodon niemfuensis, pasto estrella; Zea mays, Maíz y Cucúrbita moschata, zapallo. El pasto estrella y el zapallo fueron cultivos previos al ensayo; los otros materiales se sembraron por semilla a 50 cm en cuadro y se incorporaron al suelo a los 150 días cuando se cosechó el maíz (choclo. Maíz y canavalia aportaron mayor biomasa al suelo (10.068 y 9.748 kg/ha, respectivamente. C. cajan arbóreo y C. ensiformis aportaron las mayores cantidades de nitrógeno (254 y 213 kg/ha. El maíz y el pasto estrella, por sus altos contenidos de lignina, se descompusieron más lentamente. En casi todos los tratamientos se presentó incremento de la población microbiana, predominando la población de bacterias, seguida por hongos, fijadores de nitrógeno de vida libre y luego la población de actinomicetos. ABSTRACT Evaluation of six green manure materials in a Ustic Vertisol Soil of Cauca Valley, Colombia. This research was realized in the Experimental Center of the National University in Palmira. A design of a Randomized Completed Blocks, with six treatments and three repeticions was used. The treatments were two accesions of guandul (tree and shrub Cajanus cajan, Canavalia Canavalia ensiformis Corn Zea mays, Star grass Cynodon niemfuensis and Ramkin Cucúrbita moschata. The plot size was 20 m x 10 m. The materials were incorporated with tractor and disk plough when the maiz was colected as ear. The results showed that corn and Canavalia had the higher yields of fitomass (10068 and 9748 kg/ha, respectively. The legumes C. cajan (tree and C. ensiformis showed higher yileds of Nitrogen (254 and 213 kg/ha and biomolecules. Z. mays and C. nlemfuensis were the treatments with lower descomposition rate in the soil. Key words: green manure, fitomass, nutrients, Canavalia, Guandul, star grass, corn, soil microbiology.

  14. Determinacion del N y P en abonos organicos mediante la tecnica del elemento faltante y un bioensayo microbiano

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    Eduardo Salas

    2001-01-01

    Full Text Available Mediante la tecnica del elemento faltante en ferinvernadero y el uso de un bioensayo microbiano se determin6 la disponibilidad de N y P en 6 sus- greenhoutratos: suelo s6lo 0 en mezcla 9: 1 con diversos abo- nos organicos, a saber: pollinaza (CM, compost (C, bocashi (B, vermicompost (V 0 broza de ca- determife (Br. En ambos bioensayos y para cada sustrato se realiz6 un experimento factorial 2x2 (fertiliza- ci6n con P y N; las combinaciones resultantes fue- ron: +P, +N, +P+N y -P-N (testigo. En el bioensa- yo microbiano se utiliz6 un diseno de bloques al azar con 6 repeticiones y se midi6 el crecimiento microde la biomasa microbiana nativa (BM 2 dias des- pues de aplicar el tratamiento e incubar con gluco- sa. En la prueba de invernadero se utiliz6 un dise- no completamente al azar con 4 repeticiones, se utiliz6 sorgo (Sorghum vulgare como planta indi- cadora. Se midi6 el peso seco de la parte aerea de lasplantas a los 34 dias de la siembra (PS y el con- tenido foliar de nutrimentos. Ambos bioensayos in- sordicaron respuesta del suelo a la aplicaci6n de P y N. La mezcla del suelo con un 10% de CM, CoB mostraron los valores mas altos de BM y PS. La mezcla suelo:CM no respondi6 a ningun tratamien- to qufmico, mientras que en mezcla con el C 0 el B respondi6 a la aplicaci6n de N pero no al P. Con el Vola Br se obtuvo las menores respuestas de las variables y hubo respuesta ala adici6n de P y N. La tecnica del elemento faltante de invernadero

  15. Bocashi: abono orgánico elaborado a partir de residuos de la producción de plátanos en Bocas del Toro, Panamá

    OpenAIRE

    Ramos Agüero, David; Terry Alfonso, Elein; Soto Carreño, Francisco; Cabrera Rodríguez, Juan A

    2014-01-01

    Los beneficios del uso de enmiendas orgánicas como el Bocashi, son ampliamente conocidos a escala mundial, aunque, la literatura científica poco precisa sobre sus contenidos nutricionales y se hace poca referencia a la carga microbial existente en estos materiales. El presente trabajo consistió en la elaboración del abono y su seguimiento a las propiedades químicas y microbiológicas durante cinco meses posteriores a su preparación. A partir de 21 días y hasta los 150 días de elaborado, se det...

  16. Situación Actual de la Comercialización del Abono Orgánico Bocashi en el Sugamuxi Status of the Comercialize of Organic Fertilizer in the Sugamuxi Bocashi

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    Carlos Orlando Parra Penagos

    2009-12-01

    Full Text Available El presente artículo se ubica dentro del mercadeo y responde a la pregunta ¿cuál es la situación actual de la comercialización del Abono Orgánico Bocashi en el Sugamuxi? Para tal fin se soporta teóricamente en el desarrollo del mix. Se encuentra en su orden el desarrollo conceptual en mercadeo y el abono como tal; a su vez los resultados fruto de encuestas aplicados a tres grupos definidos y por último, el análisis donde se responde al interrogante. El artículo concluye con la demostración del desaprovechamiento de este sector.This article is located in “marketing” and answers the question “what is the status of the commercialization of Bocashi Organic fertilizer in Sugamuxi? To this end, theoretical support is in the development of the mix. We find in sequence conceptual development in marketing and fertilizer as such; in turn the results arising from surveys applied to three definite groups and finally the analysis where the question is answered. The article concludes with a demonstration of wastage in this sector.

  17. Efecto de abonos orgánicos en las propiedades químicas del suelo y el rendimiento de la mora (Rubus adenotrichus en dos zonas agroecológicas de Costa Rica

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    Rafael Orozco Rodríguez

    2012-05-01

    Full Text Available El objetivo de esta investigación es evaluar el efecto de dos abonos orgánicos en las propiedades quími- cas del suelo y el rendimiento de plantas de mora (Rubus adenotrichus cv.’Vino’ en dos zonas de Costa Rica. Para ello se establecieron dos experimentos, uno en Buena Vista de Pérez Zeledón (BVPZ y otro en San Mar tín de León Cor tés (SMLC, ambos en la provin- cia de San José, Costa Rica. La investigación se realizó entre agosto del 2005 y julio del 2008. Se evaluaron tres tratamientos en cada experimen- to: Compost (C y Lombricompost (L, a razón de 4 kg/planta y 3 kg/planta respectivamente, y un testi- go sin abono (T. La frecuencia de aplicación de los abonos a la siembra se dio a los 6, 12, 18 y 24 meses para un total de 6,6 t/ha para el C y 4,9 t/ha para el L. Se tomaron muestras de suelo a los 0, 6, 12, 18, 24 y 35 meses, después de la siembra para su análisis. Los resultados muestran que, en ambos agro-ecosis- temas, la aplicación del C y L incrementó el pH del suelo, redujo la acidez, incrementó la disponibilidad de Ca, Mg, K, N, y P, y favoreció la capacidad de in- tercambio catiónico efectiva (CICE y el porcentaje de materia orgánica. No se observó acumulación de Mn, Cu y Zn. En cuanto al rendimiento, en BVPZ solo se encon- traron diferencias significativas (P=0,00188 entre C (1,8 t/ha y el T (0,9 t/ha; mientras que en SMLC, no se encontraron diferencias estadísticas significativas (P

  18. EFECTO DEL ABONO DE SUSTRATO GASTADO DE CHAMPIÑÓN EN EL RENDIMIENTO DE FRIJOL Phaseolus vulgaris L.

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    Helio Adán García Mendívil

    2014-01-01

    Full Text Available La manipulación de los desechos orgánicos y sus compostas representan una fuente de nutrientes imprescindible para la agricultura sostenible, ya que provee de fertilizantes naturales y reduce la contaminación ambiental, bajando con ello el costo de producción. El objetivo de este estudio fue evaluar el efecto de la aplicación de composta a base de sustrato gastado de champiñón, enriquecida con silicio, al suelo, en cultivo de frijol, a través de mediciones fisiológicas y rendimiento en frijol. El experimento se estableció en campo, sembrándose frijol var. Pinto Saltillo en Huatabampo, Sonora, en un suelo de tipo aluvión ligero. El diseño experimental utilizado fue de bloques completos al azar, compuesto de 4 tratamientos con cuatro repeticiones: 1.- testigo (sin aplicación, 2-2.5, 3 5 y 4-7.5 Mg ha 1 de composta. Las variables evaluadas fueron: clorofila total, tasa fotosintética (µg CO2 S-1 cm-2, número de vainas por planta y rendimiento. Con los datos se realizó un análisis de varianza y las medias se compararon con la prueba de Tukey (P ≤ 0.05. Se observaron respuestas significativas en la mayoría las variables evaluadas, en clorofila total hubo aumentos de hasta 26.2% en el tratamiento dos, para fotosíntesis de 26.1% en el tratamiento cuatro, en el número de vainas 8.7% en el tratamiento tres, siendo este el de mayor rendimiento (P ≤ 0.05 con 2.91 Mg ha-1, seguido del tratamiento dos con 2.89 Mg ha-1, el tratamiento cuatro con 2.85 Mg ha-1, y por último el testigo con 1.4 Mg ha 1. Los resultados sugieren que el empleo de composta es una alternativa de fertilización viable para la producción de frijol.

  19. Design optimization of the Laguna Verde nuclear power station fuel recharge; Optimacion del diseno de recargas de combustible para la Central Laguna Verde

    Energy Technology Data Exchange (ETDEWEB)

    Cortes Campos, Carlos Cristobal [Instituto de Investigaciones Electricas, Cuernavaca (Mexico); Montes Tadeo, Jose Luis [Instituto Nacional de Investigaciones Nucleares (ININ), Salazar (Mexico)

    1991-12-31

    It is described, in general terms, the procedure that is followed to accomplish the optimization of the recharge design, and an example is shown where this procedure was applied for the analysis of the type BWR reactor of Unit No. 1 of the Laguna Verde Nuclear Power Station. [Espanol] Se describe en terminos generales el procedimiento que se sigue para realizar la optimacion del diseno de recargas, y se muestra un ejemplo en el que se utilizo dicho procedimiento para el analisis del reactor tipo BWR de la unidad 1, de la Central Laguna Verde (CLV).

  20. Design optimization of the Laguna Verde nuclear power station fuel recharge; Optimacion del diseno de recargas de combustible para la Central Laguna Verde

    Energy Technology Data Exchange (ETDEWEB)

    Cortes Campos, Carlos Cristobal [Instituto de Investigaciones Electricas, Cuernavaca (Mexico); Montes Tadeo, Jose Luis [Instituto Nacional de Investigaciones Nucleares (ININ), Salazar (Mexico)

    1992-12-31

    It is described, in general terms, the procedure that is followed to accomplish the optimization of the recharge design, and an example is shown where this procedure was applied for the analysis of the type BWR reactor of Unit No. 1 of the Laguna Verde Nuclear Power Station. [Espanol] Se describe en terminos generales el procedimiento que se sigue para realizar la optimacion del diseno de recargas, y se muestra un ejemplo en el que se utilizo dicho procedimiento para el analisis del reactor tipo BWR de la unidad 1, de la Central Laguna Verde (CLV).

  1. Paso del Aguilo : bol hémisphérique type Rio Verde Poli

    OpenAIRE

    Michelet , Dominique

    1981-01-01

    Zone IV, site n°2. Las Colaciones, Paso del Aguila, municipio Armadillo, San Luis Potosi.Bol "hémisphérique" profond du type Rio Verde poli. Engobe brun clair. 3 pieds en bouton à peine esquissés. Hauteur totale 7 centimètres. Diamètre de l'ouverture 11,5 centimètres. Collection particulière. Paso del Aguila.

  2. Elaboración de abono orgánico a partir de plantas acuáticas: Elodea (Hydrilla verticillata) y Jacinto o Lirio de agua (Eichhornia crassipes), procedentes del Lago de Coatepeque y Lago de Güija

    OpenAIRE

    Reyes de Cabrales, Cecilia Elizabeth

    2009-01-01

    El presente estudio tiene por finalidad elaborar un abono orgánico bajo la técnica de compostaje, conocida como proceso de descomposición aeróbica. Se realizaron tres formulaciones de abono a partir de las plantas acuáticas Elodea (Hydrilla verticillata) y Jacinto de agua (Eichhornia crassipes) en las siguientes proporciones: Elodea 100%, Jacinto de agua 100% y mezcla de ambas en una proporción de 50:50. A los abonos obtenidos se les realizaron análisis químico con la finalidad de cuantificar...

  3. POTENCIALIDAD DEL PLÁTANO VERDE EN LA NUEVA MATRIZ PRODUCTIVA DEL ECUADOR

    Directory of Open Access Journals (Sweden)

    Rubén Paz

    2013-12-01

    Full Text Available El presente trabajo revela la potencialidad que tiene el  plátano verde o macho para incorporarlo en la nueva matriz productiva la misma que hace referencia al cambio del modelo primario exportador, a uno fundamentado en el valor agregado de los productos.  Para ello, se argumenta en las bondades de la naturaleza para la producción de éste producto, como también en la versatilidad que tiene para ser transformado en la industria de alimentos y en otras por el importante contenido de fibra y celulosa, materias primas requerida en muchos procesos industriales, lo que generará nuevas plazas directas de trabajo. Así también se reconocen las dificultades que tienen las áreas cultivadas en cuanto a problemas fitosanitarios y desastres naturales. La nueva matriz productiva tendrá como objetivo primordial garantizar el Sumak kawsay, que significa estado de bienestar  de la población,  y en especial de los agricultores pobres, a quienes a través de la capacitación y apoyo financiero se les haga partícipes de éste gran reto.

  4. El abono mixto y la enmienda calcárea

    OpenAIRE

    Mejía, Pedro Nel

    2013-01-01

    De gran importancia he encontrado tratar sobre este tema que de suyo dará a conocer a grandes rasgos la fuente de riqueza que existe en la "Granja de Termales", en donde el Ministerio de la Economía Nacional posee en la actualidad ochocientos ejemplares ovinos (800). entre machos y hembras, correspondientes a las razas "Merino puro" y los cruces de Merino con la oveja criolla de Boyacá y Marulanda. La fuente de riqueza a que me refiero, es aquella del abono proporcionado por estos anima...

  5. Estudio del efecto térmico de espacios verdes urbanos del árido con sensores remotos

    Directory of Open Access Journals (Sweden)

    Alejandra Kurbán

    2015-12-01

    Full Text Available Se estudia el efecto térmico estacional de los espacios verdes urbanos en una ciudad de zona árida (San Juan, Argentina, a través del procesamiento de imágenes satelitales multiespectrales tipo LANDSAT 5 TM+ correspondientes al año 2011. La temperatura del aire se obtiene con el método TvX a partir de un muestreo amplio de relaciones entre el índice normalizado de vegetación NDVI y la temperatura de superficie. Los datos térmicos se combinan con registros de una estación meteorológica ubicada en el centro de la ciudad. Se cuantifican dichos datos y se relacionan con las bandas urbanas características de la ciudad y la isla de calor estacional, esta última obtenida del procesamiento de las mismas imágenes satelitales de 2011. Los resultados convalidan y amplían los conseguidos a partir de un previo trabajo de campo in situ, respecto al efecto bioclimático de los espacios verdes en sus ambientes urbanos áridos. Se verifica, finalmente, la eficiencia del uso de la teledetección para estudios urbanos, cuyos alcances puedan aplicarse al diseño urbano bioclimático.

  6. El Abono Mixto y la Enmienda Calcárea

    Directory of Open Access Journals (Sweden)

    Mejía Pedro Nel

    1941-02-01

    Full Text Available De gran importancia he encontrado tratar sobre este tema que de suyo dará a conocer a grandes rasgos la fuente de riqueza que existe en la "Granja de Termales", en donde el Ministerio de la Economía Nacional posee en la actualidad ochocientos ejemplares ovinos (800. entre machos y hembras, correspondientes a las razas "Merino puro" y los cruces de Merino con la oveja criolla de Boyacá y Marulanda. La fuente de riqueza a que me refiero, es aquella del abono proporcionado por estos animales. No solamente debiera el Gobierno interesarse en el cultivo y sostenimiento del animal por su carne y lana, sino que debiera hacer un esfuerzo por obtener un sistema equitativo y económico de manufacturar el abono orgánico, y una vez sometido a los correspondientes procesos de fermentación, darle facilidad a los papicultores de la zona del páramo para que hagan utilización del producto en sus cultivos. En la “Granja de Termales” haría el Gobierno Nacional una importante labor, de resultados muy directos, estudiando la manera de establecer un sistema práctico y económico de estercoleros en los cuales se pueda hacer una preparación del estiércol por lo menos en un lapso de 3 a 3 meses y medio. Las condiciones del suelo en su parte física y en su contenido de acidez, deja un margen de seguridad al éxito del abono en las zonas donde el cultivo de la papa prospera con perspectivas halagüeñas. La majada de oveja es acreedora a condiciones extraordinarias como fertilizante, factor que induce al pueblo francés a tener una gran predilección de su empleo en las prácticas del sistema intensivo de manejo del vegetal; la gran experiencia de este pueblo en su manejo, es el factor que lo acredita para ser considerado como uno de los mejores fertilizantes de origen orgánico.

  7. Macroinvertebrados bentónicos del humedal de Palo Verde, Costa Rica

    Directory of Open Access Journals (Sweden)

    F.A Trama

    2009-11-01

    Full Text Available El humedal de Palo Verde es uno de los más importantes de Centro America para aves acuáticas. Durante el período 2002 y 2005, se llevaron a cabo actividades de manejo para controlar la invasión de Typha domingensis. Con el fin de establecer una línea base para monitoreos futuros, en el 2003 se realizó una evaluación de macroinvertebrados acuáticos. Se efectuó un muestreo mensual durante un año, usando el método de sustratos artificiales. Se identificaron 116 táxones pertenecientes a 47 familias y a 18 órdenes. La mayor abundancia se encontró en la clase Conchostraca y la familia Chironomidae que juntas representaron casi la mitad de todos los individuos colectados. En contraste, el 97% de los táxones tuvieron, cada uno, menos del 1% del total de la abundancia. La diversidad de táxones, así como la abundancia de individuos y el número de especies, fueron mayores en la época seca que en la lluviosa. La curva acumulada de especies indicó que se hubiera registrado una mayor cantidad de táxones si los muestreos se hubieran extendido por más tiempo. Con este trabajo damos a conocer la primera lista de macroinvertebrados para el humedal de Palo Verde.

  8. ¿Cabría un desmarketing a la concepción del marketing verde actual? Una crítica a la teoría y la práctica del marketing verde

    Directory of Open Access Journals (Sweden)

    Tatiana Tola Cisneros

    2014-06-01

    Full Text Available Este artículo examina el constructo del Marketing Verde o Green Marketing revisando literatura en torno a lo teorizado y practicado. El texto presenta en primer lugar una reflexión particular sobre los aportes e implicaciones más relevantes en relación al marketing verde y su posible necesidad de reenfocarse. Luego, una identificación general del consumidor verde y de su rol dentro del proceso de gestión ambiental. Finalmente, se ofrecen en este trabajo algunas consideraciones sobre la necesaria aplicación del correcto concepto de Green Marketing sostenible dentro de la sociedad. Esta revisión servirá a otros investigadores que necesiten conocer el estado de la investigación en torno al Green Marketing. Además, individuos y organizaciones podrán beneficiarse de las estrategias de marketing verde sostenible para desarrollar campañas de Marketing Socioambiental con miras a generar un verdadero cambio en la conducta ambiental, con una conciencia perpetua, inmutable y que se transmita como valor innegable de generación en generación.

  9. Macroinvertebrados bentónicos del humedal de Palo Verde, Costa Rica

    Directory of Open Access Journals (Sweden)

    F.A Trama

    2009-11-01

    Full Text Available El humedal de Palo Verde es uno de los más importantes de Centro America para aves acuáticas. Durante el período 2002 y 2005, se llevaron a cabo actividades de manejo para controlar la invasión de Typha domingensis. Con el fin de establecer una línea base para monitoreos futuros, en el 2003 se realizó una evaluación de macroinvertebrados acuáticos. Se efectuó un muestreo mensual durante un año, usando el método de sustratos artificiales. Se identificaron 116 táxones pertenecientes a 47 familias y a 18 órdenes. La mayor abundancia se encontró en la clase Conchostraca y la familia Chironomidae que juntas representaron casi la mitad de todos los individuos colectados. En contraste, el 97% de los táxones tuvieron, cada uno, menos del 1% del total de la abundancia. La diversidad de táxones, así como la abundancia de individuos y el número de especies, fueron mayores en la época seca que en la lluviosa. La curva acumulada de especies indicó que se hubiera registrado una mayor cantidad de táxones si los muestreos se hubieran extendido por más tiempo. Con este trabajo damos a conocer la primera lista de macroinvertebrados para el humedal de Palo Verde.Benthic macroinvertebrates of the Palo Verde wetland, Costa Rica. Palo Verde, Costa Rica, is one of the most important wetlands in the region now recovering from some invasive plants, especially Typha domingensis, and monitoring programs were started, including studies on the aquatic macoinvertebrate fauna. We sampled benthic macroinvertebrates monthly for more than a year with artificial substrates, and identified 116 taxa from 57 families and 18 orders, with 90 morfospecies of insects. The highest abundances were in the class Conchostraca (typical in seasonal wetlands and in the family Chironomidae (Diptera, Insecta, which together represent almost half of all individuals collected. In contrast, 97 taxa were less than 1% of total abundance each. Number of individuals and number of

  10. Implementación del proceso de canal verde en la aduana marítima de Guayaquil

    OpenAIRE

    Celi Chamba, Johanna Paola

    2008-01-01

    propone un nuevo proceso para facilitar el comercio exterior y de manera en especial las actividades de importación; este proceso denominado Canal Verde o Aforo Automático está siendo aplicando en la mayoría de las aduanas del mundo logrando crear aduanas eficientes

  11. Bioensayo microbiano para estimar los nutrimentos disponibles en los abonos organicos: calibracion en el campo

    Directory of Open Access Journals (Sweden)

    Eduardo Salas

    2001-01-01

    Full Text Available Se demostr6 recientemente que el aumento nude la biomasa microbiana en una mezcla de sue- calo: abono organico (9:1, suplementada con gluco- sa como fuente de carbono, fue proporcional al crecimiento de una planta indicadora (sorgo cre- cida en el mismo sustrato. En la presente investi- gaci6n se determina si este bioensayo es de utili- dad como gufa en la fertilizaci6n de los cultivos con abonos organicos, mediante la siembra en el campo de chile dulce (Capsicum annuum L. y to- mate (Lycopersicum esculentum L. como plantas indicadoras. Los tratamientos consistieron de sue- 10 solo 0 en mezcla con 10% de abonos organicos amende contenido de nutrimentos contrastante a saber: pollinaza (CM, compost (C, bocashi (B, vermi- macompost (V y broza de cafe (Br. En el bioensa- vermicomyo microbiano se utiliz6 un disefio de bloques randocompletos al azar con 6 repeticiones, la biomasa microbiana (BM se midi6 2 dfas despues de in- cubar con glucosa. En los ensayos de campo las plantas indicadoras se sembraron en un disefio de bloques completos al azar con 4 repeticiones. En chile dulce se midi6 el peso seco (600 C de la comparte aerea de la planta (PSC y el peso fresco de frutos verdes (PFF a los 97 dfas despues de la Microsiembra. El peso seco de la parte aerea de las amendplantas de tomate (PST fue medido a los 32 dfas. Los abonos organicos CM, C y B indujeron la mayor BM y tambien el mayor PSC, PFF Y PST, indicaci6n de que fueron los de mayor y mas in- mediato suministro de nutrimentos, contrario al y Br que mostraron los valores mas bajos para es- tas variables (P<0.05. Estos 2 abonos, respecto vatratamiento de CM presentaron 3 y 5 veces menos BM y 2 Y 4 veces menos biomasa aerea, respecti- vamente (P<0.05. Las correlaciones altas obteni- codas entre la BM y el PSC (r=0.87 y entre la BM y el PST (r= 0.93, permiten concluir que bioensayo microbiano es un metoda promisorio para pronosticar el suministro de nutrimentos orlos abonos organicos a los cultivos

  12. EL IMAGINARIO "VERDE" Y EL VERDE URBANO COMO INSTRUMENTO DE CONSUMO INMOBILIARIO: CONFIGURANDO LAS CONDICIONES AMBIENTALES DEL ÁREA METROPOLITANA DE SANTIAGO

    Directory of Open Access Journals (Sweden)

    Felipe Irarrázaval Irarrázaval

    2012-01-01

    Full Text Available La mercantilización e instrumentalización de diversos elementos y procesos naturales ha condicionado perfectas plataformas para la acumulación de riquezas. Esto ha sido posible en la medida que existen las condiciones políticas, sociales y económicas para que suceda. Además, en el caso de las condiciones ambientales urbanas, se suma un "imaginario verde" en un amplio espectro de la población, la cual presenta un gran interés por vivir en espacios dotados de naturaleza. Estas condiciones han determinado que en las ciudades se desarrolle una desigual distribución de las condiciones ambientales, dado que cuando la gestión urbana queda en manos del sector privado, sólo las elites con poder adquisitivo pueden acceder a áreas verdes y al arbolado urbano. La presente investigación busca reconocer a la naturaleza urbana como un "instrumento de consumo" inmobiliario, así como sus implicancias en la distribución de las condiciones ambientales en Santiago de Chile. Para esto se reconoce el espacio urbano en ciudades capitalistas como un eslabón dentro de las plataformas de acumulación de capital. A su vez, se integra la perspectiva de los imaginarios ofertados/empleados por el sector inmobiliario como un tema central para concretar la plataforma de acumulación.

  13. El caballero del Verde Gabán: algunas consideraciones desde el epicureísmo y el estoicismo

    Directory of Open Access Journals (Sweden)

    Josefa Álvarez

    2007-12-01

    Full Text Available The purpose of this paper is to study the figure of the “Caballero del Verde Gabán” from the perspectives of the stoic and Epicurean philosophic traditions given that these traditions deeply influenced the literatures and thought of the Golden Age. To do so, we search and analyze several greco-roman sources that lead us to determine that although both philosophic traditions converge in the figure of the “Caballero del Verde Gabán” a clear preeminence of the epicurean tradition is evident. In contrast, a clear stoic tradition is clear in the figure of “Don Quijote”. We attempt to show how Cervantes presents the reader with two ways of life at odds with each other at the beginning of a new century; one full of realism and pragmatism in the figure of the “Caballero del Verde Gabán”, the other, “the quijotesco” showing its anachronistic idealism.

  14. O golfe e os rumos do Cabo Verde independente = Golfing and the independent Cape Verde directions = El golf y los caminos del Cabo Verde independiente

    Directory of Open Access Journals (Sweden)

    Melo, Victor Andrade de

    2016-01-01

    Full Text Available Em função de uma série de peculiaridades, o golfe tem desempenhado um importante papel na história de Cabo Verde. A prática, que tem uma longa trajetória no arquipélago, em diversas ocasiões foi mobilizada a fim de materializar a ideia de que o cabo-verdiano era portador de um alto padrão civilizacional. No período colonial, essa foi uma das estratégias pelos nativos usada para lidar com o jugo da metrópole, argumento utilizado para requisitar maior respeito às especificidades e atenção às necessidades locais. O que terá mudado nas considerações sobre esse esporte quando chegou a independência (1975? Que diferenças podem ser sentidas nas décadas seguintes? Neste artigo, argumentamos que os discursos sobre a modalidade nos ajudam a lançar um olhar sobre os debates acerca dos rumos do país insular nos últimos 40 anos

  15. Planeamiento del proceso constructivo del PAD I fase III en la mina Cerro Verde

    OpenAIRE

    Tomas Loayza, Mariela Irma; Tomas Loayza, Mariela Irma; Tomas Loayza, Mariela Irma

    2015-01-01

    El planeamiento constructivo del PAD 1 Fase III ha sido elaborado detalladamente teniendo en cuenta un trabajo calificado de investigación, plasmando los resultados en el cronograma de ejecución y corroborando la ejecución de la obra mediante el ciclograma. Los alcances del proyecto son los estudios de topografía, estudios geotécnicos, geológicos y diseño civil, que son dados en el capítulo 11. La topografía es el relieve que representa la zona caracterizándose por taludes con elevada p...

  16. Dynamic analysis of the condensate and of the feed water in the Laguna Verde nuclear power station; Analisis dinamico del sistema de condensado y agua de alimentacion de la nucleoelectrica de Laguna Verde

    Energy Technology Data Exchange (ETDEWEB)

    Macedo Muth, Javier; Sandoval Pena, Ramon [Instituto de Investigaciones Electricas, Cuernavaca (Mexico)

    1988-12-31

    This article shows a non-lineal mathematical model for the condensate, and feed water systems and for feed water heater drains at the Laguna Verde Nuclear Power Station for its simulation in real time. The model allows the calculation of flows and pressures in all the piping system and equipment that integrate the systems. It was obtained by using the force unbalance in the fluid concept and is capable of reproducing its dynamic behavior through variations induced by the different operation modes and more common failures. The final model objective is to form part of the Laguna Verde simulator that will be used for operator training of this Nuclear Power Plant. [Espanol] En este articulo se muestra un modelo matematico no lineal de los sistemas de condensado, agua de alimentacion y drenes de calentadores de la central nuclear de Laguna Verde para su simulacion en tiempo real. El modelo permite calcular los flujos y las presiones en toda la red de tuberias y equipos que integran los sistemas. Se obtuvo utilizando el concepto de desbalance de fuerzas en el fluido, y es capaz de reproducir su comportamiento dinamico ante variaciones inducidas por los diversos modos de operacion y fallas mas comunes. El objetivo final del modelo es formar parte del simulador de Laguna Verde que se empleara para el adiestramiento de los operadores de dicha central nuclear.

  17. Aprovechamiento del Lechuguín (Eichhornia Crassipes) para la generación de abono orgánico mediante la utilización de tres diseños diferentes de biodigestores

    OpenAIRE

    López Jerves, Gabriela Nataly

    2012-01-01

    El siguiente estudio se basa en la utilización de la especie "Eichhornia Crassipies" más conocida comúnmente como Lechuguín para la generación de abono orgánico mediante la utilización de tres diseños diferentes de biodigestores. Es así que se implementaron el diseño de biodigestor de bidón, el mismo que es hecho de plástico; el segundo diseño implementado fue el biodigestor de bolsa, realizado con geomembrana y por último el biodigestor de caja fabricado con cemento. Es así que mediante la d...

  18. Identificación de Ecosistemas y Servicios Ecosistémicos dentro del ámbito de la Costa Verde.

    OpenAIRE

    Majluf, Patricia

    2014-01-01

    Dado el desarrollo económico del Perú y la inminente culminación de la vía rápida de tres carriles en la parte baja de la Costa Verde, es necesario que se instale dentro de la mente de los limeños y de los tomadores de decisión, la idea de la necesidad y del gran potencial que ofrece la Costa Verde para mantener, mejorar, crear o recuperar espacios naturales o seminaturales, accesibles para la mayoría de pobladores de una ciudad que no va a poder sustituirla por otros espacios similares. H...

  19. Abonos orgánicos como insumo de nutrición vegetal en un sistema hidropónico alternativo

    OpenAIRE

    Cuervo Osorio, Víctor Daniel

    2010-01-01

    El presente trabajo se realizó en los invernaderos del Colegio de Postgraduados, estado de México. Se comparó un sistema hidropónico convencional (inorgánico) y otro propuesto como alternativo (orgánico). En este ensayo la planta se ubicó en un sustrato inerte (tezontle) y sobre esté se colocó un abono orgánico, el cual nutre la planta. Los 3 abonos orgánicos fueron gallinaza, lombricomposta y estiércol bovino dosificados a 3 niveles cada uno (100, 200, 300 kg ha-1 de nitrógeno mineral) uti...

  20. Propuesta de KPIs para la evaluación de un Corredor Verde: tramo Madrid-Lyon del Corredor Mediterráneo

    OpenAIRE

    López Fraga, Miguel

    2014-01-01

    “Propuesta de KPIs para la evaluación de un Corredor Verde: tramo Madrid-Lyon del Corredor Mediterráneo” es un proyecto de fin de carrera de Ingeniería Industrial cuyo objetivo se enmarca dentro de la promoción del desarrollo logístico del transporte de mercancías europeo de una forma sostenible y respetuosa con el medio ambiente. Después de aclarar el concepto de corredor verde a través de la revisión del Plan de Acción Logística de la UE y establecer cinco características principales que...

  1. Evaluación financiera de la fertilización nitrogenada del cultivo de arroz en siembra directa sobre rastrojos

    Directory of Open Access Journals (Sweden)

    Rodolfo Quirós

    2006-01-01

    Full Text Available En mayor proporción que en otros granos básicos, los rendimientos en el cultivo del arroz dependen de la eficiencia en la fertilización nitrogenada. Para evaluar la respuesta del cultivo en los sistemas de siembra directa sobre rastrojos “SDR” y labranza mecanizada convencional “LMC” a diferentes alternativas de fertilización nitrogenada, se realizó una evaluación financiera durante un plazo de 5 años, con 2 ciclos de siembra anuales. El estudio fue realizado de acuerdo a las condiciones agronómicas y económicas de agroecosistemas arroceros inundados en la Región Pacífico Norte de Costa Rica. De las alternativas evaluadas, la fertilización nitrogenada con 3 fraccionamientos y el uso de mucuna (Mucuna deeringiana como abono verde entre ciclos del cultivo fue la más rentable, con un valor actualizado neto “VAN” y un valor esperado de la tierra “VET” de 3031 y 33346 US.$ ha-1, respectivamente. La interacción entre el sistema SDR, el uso de mucuna como abono verde, y la fertilización nitrogenada dividida en 3 aplicaciones permitió mayores rendimientos y mayor rentabilidad con respecto a las otras alternativas evaluadas.

  2. Modernization of the turbo in the Laguna Verde Nuclear Power Plant; Modernizacion del turbogrupo en la Central Nuclear de Laguna Verde

    Energy Technology Data Exchange (ETDEWEB)

    Liebana, B.; Merino, A.; Cobos, A.; Gonzalez, J. J.

    2010-07-01

    The power increase of the Laguna Verde Nuclear Power Plant is a project for the rehabilitation and modernization of the turbo and associated equipment to get an increase of its power and of its service life. The project scope includes the design, the engineering, the equipment supply, the installation, the testing and the commissioning. This paper describes the first phase of the project.

  3. EL BANANO VERDE DE RECHAZO EN LA PRODUCCIÓN DE ALCOHOL CARBURANTE

    Directory of Open Access Journals (Sweden)

    Angélica María Afanador

    Full Text Available Se describe el estado del conocimiento sobre la producción de alcohol anhidro a partir de banano de rechazo mediante un análisis comparativo de los estudios sobre el aprovechamiento de esta fruta en el Urabá antioqueño desde la década de 1980 hasta la actualidad. Contempla su disponibilidad como materia prima, su composición química, los procesos fisicoquímicos de transformación del banano en alcohol anhidro y los impactos ambientales potenciales de esta industria. Si bien es enorme el volumen de banano de rechazo, existe incertidumbre sobre su disponibilidad para la industria del alcohol, ya que se emplea en la producción de abonos y la alimentación animal. No obstante los avances y posibilidades de perfeccionar el proceso tradicional de producción de alcohol anhidro (hidrólisis ácida o enzimática y fermentación alcohólica, la fermentación ABE se perfila como un proceso industrial en el futuro cercano, apoyado en tecnologías de deshidratación como la pervaporación y bioadsorción. A la fecha no se conocen estudios de impacto ambiental de la producción de etanol a base de banano verde.

  4. Las minas de magnesita del Puerto de la Cruz Verde (Madrid)

    OpenAIRE

    Mazadiego Martínez, Luis Felipe; Puche Riart, Octavio; Jordá Bordehore, Luis

    2003-01-01

    Las ruinas de una mina de magnesita, localizada en el Puerto de la Cruz Verde, próxima a Zarzalejo y al Monasterio de El Escorial, es el objeto de este trabajo. Los edificios auxiliares, el transformador y las bocaminas se hallan en buen estado de conservación. Todo esto hace que sea necesario un proyecto de protección y restauración, dado el interés cultural y paisajístico que tiene este enclave

  5. EMPRENDIMIENTO VERDE EN TORNO A LA CONSERVACIÓN Y RECUPERACIÓN DEL AGUA Y SUS ESPACIOS EN BOGOTÁ Y MEDELLÍN (COLOMBIA

    Directory of Open Access Journals (Sweden)

    SONIA E. SANABRIA

    2018-01-01

    Full Text Available El emprendimiento verde es entendido en este documento, como el desarrollo de actividades orientadas a la mitigación, reducción o eliminación de problemáticas ambientales, las cuales son consideradas de entrada como innovadoras, en la medida en que proponen cambios en los patro- nes de producción y consumo que deterioran las condiciones naturales del planeta y en el relacio- namiento del ser humano con el entorno. En este caso, el objeto de análisis es el emprendimiento verde orientado a la restauración y conservación del agua y sus espacios en Bogotá y Medellín. La investigación desarrollada se sustentó en la aplicación de entrevistas semi-estructuradas a actores de diferente tipo, involucrados en estas actividades. Se consideró que los espacios del agua son bienes comunes, alrededor de los cuales prevalece el sentir general de que pertenecen a todos y a la vez a nadie. Se concluye que un modelo eficaz para lograr su gestión adecuada implica la co- gestión participativa, lo que abre la posibilidad al emprendimiento verde promulgado por diferen- tes actores. En este sentido, se encontraron emprendimientos promovidos por actores del sector público, empresas privadas, organizaciones sin ánimo de lucro, organizaciones sociales, fondos de agua, entre otros actores; algunos de los cuales intervienen directamente sobre los espacios del agua y otros indirectamente, a través de la optimización del consumo. La intervención en los espacios del agua en Bogotá y Medellín ha generado impactos positivos, no obstante, los esfuerzos aún son muy incipientes y de alcance local, teniendo en cuenta la extensión de los espacios del agua en el territorio.

  6. Proposal for implementation of alternative source term in the nuclear power plant of Laguna Verde; Propuesta de implementacion del termino fuente alternativo en la central nuclear Laguna Verde

    Energy Technology Data Exchange (ETDEWEB)

    Bazan L, A.; Lopez L, M.; Vargas A, A.; Cardenas J, J. B. [Comision Federal de Electricidad, Central Nucleoelectrica Laguna Verde, Km. 7.5 Carretera Veracruz-Medellin, Dos Bocas, Veracruz (Mexico)], e-mail: ariadna.bazan@cfe.gob.mx

    2009-10-15

    In 2010 the nuclear power plant of Laguna Verde will implement the extended power upbeat in both units of the plant. Agree with methodology of NEDC-33004P-A, (constant pressure power up rate), and the source term of core, for accidents evaluations, were increased in proportion to the ratio of power level. This means that for the case of a design basis accident of loss of coolant an increase of power of 15% originated an increase of 15% in dose to main control room. Using the method of NEDC-33004P-A to extended power upbeat conditions was determined that the dose value to main control room is very near to regulatory limit established by SRP 6.4. By the above and in order to recover the margin, the nuclear power plant of Laguna Verde will calculate an alternative source term following the criteria established in RG 1.183 (alternative radiological source term for evaluating DBA at nuclear power reactor). This approach also have a more realistic dose value using the criterion of 10-CFR-50.67, in addition is predicted to get the benefit of additional operational flexibilities. This paper present the proposal of implementing the alternative source term in Laguna Verde. (Author)

  7. MICROINVERNADEROS COMO ESTRATEGIA DE APROPIACIÓN Y CONSERVACIÓN DE PLANTAS NATIVAS Y ESPACIOS VERDES EN LOS ESTUDIANTES DE GRADO OCTAVO DEL GIMNASIO EL PORTILLO

    Directory of Open Access Journals (Sweden)

    Gineth Adriana Calderón Padilla

    2014-05-01

    Full Text Available La vegetación nativa ha cumplido un papel importante a través del tiempo en el desarrollo e identidad de las comunidades. Esta no se limita estrictamente a una función biológica o ecológica en un ecosistema; sino que también interviene en aspectos culturales y sociales de la población humana. A pesar de ello, en la actualidad se ha visto que existe una falta de apropiación por los espacios verdes y un desconocimiento de la función e importancia de las plantas de origen nativo en nuestro entorno. El objeto del presente artículo fue propiciar una conciencia ecológica en los estudiantes de grado octavo del colegio Gimnasio El Portillo del municipio de Cota-Cundinamarca, a partir del reconocimiento de la flora del lugar y la construcción de micro-invernaderos de plantas nativas, lo cual se logró mediante  la implementación de seis actividades guiadas, que permitieron dar cuenta de las concepciones de los estudiantes y construir nuevo conocimiento escolar, al complejizar el concepto que tenían  hacia los espacios verdes y la flora nativa y exótica desde su propio contexto; y generar sentido de apropiación y conservación de los mismos. Concluyéndose que la siembra de plantas nativas en las zonas verdes de su entorno hace que los estudiantes tengan un contacto más cercano con la flora de su país y puedan apropiarse de sus espacios y tomar conciencia de la importancia de sus usos, así como la implicación que tiene su permanencia o desaparición para un ecosistema.

  8. Calidad de abonos orgánicos empleados en la depresión de Quíbor-Venezuela bajo ambientes protegidos

    Directory of Open Access Journals (Sweden)

    Duilio Torres Rodríguez

    2017-01-01

    Full Text Available La depresión de Quíbor es una de las zonas agrícolas más importante de Venezuela, donde en los últimos años se han introducido sistemas de producción bajo ambientes protegidos, los cuales están acompañados por el uso de abonos orgánicos, no certi cados. El objetivo de esta investigación fue evaluar la calidad de los abonos orgánicos empleados en sistemas de producción bajo ambientes protegidos en la depresión de Quíbor, Venezuela. Se realizó un diseño experimental completamente al azar y se evaluaron once (11 abonos orgánicos (cuatro sólidos y siete líquidos por triplicados. Los abonos sólidos fueron colectados en la parte superior, inferior y media de las pilas, mientras que los líquidos fueron tomados directamente de los tanques de almacenamiento. Para la caracterización de los abonos se empleó el protocolo TMECC, la materia orgánica se determinó por calcinación a 450°C, el nitrógeno por Kjeldahl y los macronutrientes (potasio y calcio y micronutrientes (cobre, manganeso, hierro y zinc en extracto acuoso 1/20 (v/v del material y cuantificación por absorción atómica. Los resultados obtenidos muestran que el vermicompost y compost de gallinaza presentaron los valores más altos de macronutrientes, mientras, para los abonos líquidos Macro®, fue quien presentó la mayor concentración de nitrógeno, humus1 los valores más altos de Ca y Mg y Micro® y humus2 los mayores contenidos de manganeso, hierro, cobre y zinc fueron encontrados, todos los abonos sólidos presentaron valores bajos de micronutrientes.

  9. Efecto del Uso de Antioxidantes en Plátano Verde Dominico-Hartón (Musa AAB Simmonds) Cortado en Rodajas

    OpenAIRE

    Dussán-Sarria, Saúl; Gaona-Acevedo, Andrés Felipe; Hleap-Zapata, Jose Igor

    2017-01-01

    Se evaluaron las propiedades físico-químicas, firmeza en la pulpa e índice de pardeamiento del plátano verde (Musa AAB Simmonds) mínimamente procesado durante 21 días de almacenamiento a temperatura de 11±2 0C y humedad relativa de 92 ± 2 %. El plátano verde es uno de los frutos de mayor producción y consumo en Colombia. Sin embargo, cuando sufre un daño mecánico como un corte, ocurren cambios, en su apariencia y sabor debido a la elevada actividad metabólica típica de un producto climatérico...

  10. Cambios en la composición bioquímica y su aplicabilidad en el uso de follajes verdes como fuente de materia orgánica y nutrimentos en sistemas agroforestales Biochemical Changes and their Application for Green Manure use, as Organic Matter and Nutrient Source, in Agroforestry Systems

    Directory of Open Access Journals (Sweden)

    Argüello Arias Heliodoro

    1995-12-01

    Full Text Available El uso de abonos verdes es una práctica que, potencialmente, puede ofrecer además de beneficios indirectos como conservación de suelos, así como su humedad e incremento de los microorganismos presentes en él, otros beneficios directos como el aporte de materia orgánica y nutrimentos al suelo. Sin embargo, los agricultores muchas veces omiten
    esta práctica por la aparente escasez de fuentes de abono verde en sus fincas, ignorando que algunas especies arbóreas, presentes en sus fincas o en las de sus vecinos, pueden constituirse en las fuentes buscadas. En otro caso, si el agricultor está usando abonos verdes, la mayoría de las veces, ignora si el material usado es capaz de descomponerse y liberar los nutrimentos en el lapso que corresponde al desarrollo del cultivo. En este sentido, lo ideal sería conocer tanto la curva de nutrientes requeridos por el
    cultivo, como la curva de liberación de los mismos a través del tiempo, a fin de ajustar las dos en el campo para lograr la máxima eficiencia. En las dos situaciones planteadas, es importante disponer de un indicador que permita elegir una
    fuente de abono verde en el momento de su aplicación. Hasta ahora, esto se puede lograr a través de estudios exhaustivos de la dinámica de descomposición. Sin embargo, estos estudios son complejos y costosos en dinero y tiempo, por lo
    tanto inaccesibles para el agricultor. En este trabajo se evalúan los indicadores más importantes, reportados por la literatura, a través del proceso de descomposición y liberación de nutrimentos del follaje de ocho especies de interés agroforestal en la franja premontano de Colombia
    y se concluye que, para este grupo de especies, la relación ligninalnitrógeno inicial del follaje resultó ser el indicador más robusto, permitiendo predecir la velocidad de descomposición.Using green manure potentially can offer indirect benefits, like soil soil conservation and improvement of soil

  11. EVALUACIÓN DE ABONOS ORGÁNICOS UTILIZANDO COMO INDICADORES PLANTAS DE LECHUGA Y REPOLLO EN POPAYAN, CAUCA

    Directory of Open Access Journals (Sweden)

    JUAN MANUEL MUÑOZ C

    Full Text Available Este estudio tuvo por objeto de evaluar abonos orgánicos provenientes de residuos de cosecha y plazas de mercado de Popayán, utilizando plantas de repollo y lechuga. Se recolectaron residuos de fincas de café y plazas de mercados de Popayán, se elaboraron pilas de compost separadamente y se analizó cada compost para determinar contenido de nutrientes. Se aplicó compost en dos etapas de cultivo como fertilizante. Se utilizó un diseño completamente al azar con tres tratamientos y tres repeticiones, T0: Testigo, sin abono; T1: compost elaborado de pulpa de café, troncho de plátano y gallinaza y T2: compost elaborado con residuos de plazas de mercado. Las pruebas físico-químicas del compost cumplieron la norma NTC 5167 y la diferencia radicó en que T1 es fuente de K y P y T2 de N; la aplicación del compost al suelo mejoró pH, M.O y CIC; la ganancia promedio en peso para los cultivos supero el 300%; los análisis microbiológicos cumplieron los parámetros de INVIMA de control y vigilancia de calidad de productos alimenticios. Se concluyó que los materiales utilizados para producción de compost influyen en las propiedades físico-químicas del abono orgánico y los compostajes cumplieron con 15 parámetros de la norma NTC 5167.

  12. El corredor verde del Guadiamar y las relaciones entre protección ambiental y ordenación del territorio

    Directory of Open Access Journals (Sweden)

    Feria Toribio, José María

    2004-09-01

    Full Text Available The idea of developing a green corridor in the Guadiamar River poses some questions really relevant, both of a theoretical and empirical nature, in topics related to environmental protection and regional planning, even more dealing with an space deeply transformed and close to a metropolitan area with more than one million inhabitants. The paper analizes some of these questions, focusing on the problems, resources, weakness and strengthness which presents a project of this kind.

    El proyecto de crear un corredor verde en el Guadiamar como respuesta a la catástrofe ecológica del vertido minero de Aználcollar plantea cuestiones ciertamente relevantes, tanto de tipo teórico como práctico, en materias de protección ambiental y ordenación del territorio, más aún tratándose de un espacio profundamente antropizado y próximo a un área metropolitana de más de un millón de habitantes. El artículo analiza algunas de esas cuestiones, enfatizando los problemas y debilidades pero también las potencialidades y recursos que presenta un proyecto de esa naturaleza.

  13. Efecto de la aplicación de abonos orgánicos en la supresión de Pythium myriotylum en plantas de tiquisque (Xanthosoma sagittifolium

    Directory of Open Access Journals (Sweden)

    Silvia Artavia

    2010-01-01

    determinó la madurez, estabilidad, y actividad microbiana de los diferentes abonos, así como el efecto del tipo de compostaje (compost vs vermicompost, el material de origen (estiércol vs broza de café y el grado de madurez, sobre la supresión del patógeno. El efecto supresivo sobre el desarrollo de la enfermedad en plantas de tiquisque se estableció por medio de una escala visual de síntomas a los 3, 6 y 9 días del transplante. Los abonos presentaron relaciones C/N entre 6 y 15 y ninguno afectó la germinación o la longitud de las raíces de plántulas de pepino. Los abonos maduros clasificaron como estables y los inmaduros, con excepción del compost de broza, como inestables. La menor incidencia de pudrición de raíces por P. myriotylum se obtuvo con el uso de vermicompost a base de estiércol maduro, mientras que la menor severidad de la enfermedad ocurrió cuando el suelo se enmendó con el compost y el vermicompost maduro a base de estiércol. En términos generales los abonos obtenidos a partir de estiércol fueron más supresivos, y presentaron una mayor activida microbiana, que los producidos a base de broza de café. Se concluye que el tipo de compostaje, el origen y el grado de madurez tienen influencia sobre la capacidad supresora.

  14. Evaluación del lixiviado agroecológico como acondicionador del suelo en el cultivo de lechuga (lactuca sativa) variedad crespa verde del municipio de Madrid departamento de Cundinamarca

    OpenAIRE

    Prada Millán, Yolvi

    2016-01-01

    Tesis (Maestría en Desarrollo Sostenible y Medio Ambiente). Universidad de Manizales. Facultad de Ciencias Contables, Económicas y Administrativas. CIMAD, 2016 Los abonos orgánicos desde tiempos remotos se han trabajado de diferentes maneras, algunos sin ningún tipo de control y manejo adecuado, aun así son utilizados para conservar y mejorar las condiciones fisicoquímicas y biológicas de los suelos. Los abonos orgánicos proceden de la transformación de residuos orgánicos de or...

  15. CARACTERIZACIÓN ESTRUCTURAL DEL MANGLAR EN EL ESTERO PALO VERDE, LAGUNA DE CUYUTLÁN, COLIMA

    Directory of Open Access Journals (Sweden)

    Citlalli P. Téllez-García

    2012-01-01

    Full Text Available En el Estero Palo Verde, ubicado en el vaso IV de la Laguna de Cuyutlán, estado de Colima, se establecieron 48 unidades de muestreo (UM en tres rodales de mangle: 10 UM en rodal monoespecífico de Laguncularia racemosa, 25 UM en rodal monoespecífico de Rhizophora mangle y 13 UM en rodal mixto de L. racemosa-R. mangle. Se registró altura del dosel, diámetro del tronco, densidad de adultos y de repoblación, también se calculó área basal y volumen de madera. Los resultados indicaron que la densidad, área basal y volumen, para la categoría diamétrica (CD de 5 cm fueron significativamente diferentes (P < 0.05 entre los rodales monoespecíficos de R. mangle (2,500 árboles•ha-1, 4.2 m2•ha-1 y 22 m3•ha-1, respectivamente y L. racemosa (700 árboles•ha-1, 1.9 m2•ha-1 y 10 m3•ha-1, respectivamente. En las CD de 20 a 30 cm, el área basal fue significativamente mayor (P < 0.05 en el rodal monoespecífico de L. racemosa (1.6 - 3.8 m2•ha-1 que en el mixto de L. racemosa-R. mangle (0.5 - 2.5 m2•ha-1. La repoblación natural fue más abundante en el rodal de R. mangle (138 a 270 individuos•ha-1 que en el de L. racemosa (70 a 80 individuos•ha-1. Los valores estructurales mayores se alcanzaron para altura del dosel (10 m en el rodal de L. racemosa; para diámetro (40 cm y área basal (14.1 m2•ha-1 en el rodal de L. racemosa-R. mangle; y para repoblación natural (624 individuos•ha-1 en el rodal de R. mangle.

  16. TECHOS VERDES: ¿UNA HERRAMIENTA VIABLE PARA LA GESTIÓN AMBIENTAL EN EL SECTOR HOTELERO DEL RODADERO, SANTA MARTA?

    Directory of Open Access Journals (Sweden)

    ZIELINSKI SEWERYN

    2012-07-01

    Full Text Available El acelerado desarrollo urbano genera una serie de problemas no sólo sociales y económicos, sino también ambientales. Los techos verdes son unas de las nuevas tecnologías que pueden ser utilizadas como herramientas para la gestión ambiental en los edificios. Sin embargo, existen muchas barreras que impiden su implementación a gran escala. Este artículo hace una revisión profunda de las experiencias y resultados de numerosas investigaciones en el tema, destacando los beneficios de los techos verdes y mostrando las barreras para la implementación de esta tecnología en el sector hotelero del Rodadero, Santa Marta. La metodología consistió en la revisión de resultados de investigaciones llevadas a cabo en diferentes ciudades del mundo, haciendo énfasis en las realizadas en condiciones climáticas similares a la zona de estudio. Adicionalmente, se aplicaron encuestas a los gerentes de 18 hoteles en El Rodadero con el fin de conocer su opinión acerca del tema. Como resultado, se concluyó que los techos verdes pueden ser herramientas muy efectivas para la gestión ambiental si son implementados a gran escala. Sin embargo, en el caso de El Rodadero, ésta es una opción poco viable, aunque existe un interés de implementar proyectos pilotos que podrían disipar la desconfianza de los empresarios.

  17. Reproduction of the flow-power map of the Laguna Verde power plant; Reproduccion del mapa flujo-potencia de la Central Laguna Verde

    Energy Technology Data Exchange (ETDEWEB)

    Amador G, R; Gonzalez M, V M [Comision Nacional de Seguridad Nuclear y Salvaguardias, 03000 Mexico D.F. (Mexico)

    1993-07-01

    The National Commission of Nuclear Safety and Safeguards (CNSNS) requires to have calculation tools which allows it to make analysis independent of the behavior of the reactor core of Laguna Verde nuclear power plant (CNLV) with the purpose to support the evaluation and discharge activities of the fuel recharges licensing. The software package Fms (Fuel Management System) allows to carry out an analysis of the core of the BWR type reactors along the operation cycle to detect possible anomalies and/or helping in the fuel management. In this work it is reproduced the flow-power for the CNLV using the Presto code of the Fms software package. The comparison of results with the map used by the operators of CNLV shows good agreement between them. Another exercise carried out was the changes study that the axial and radial power outlines undergo as well as the thermohydraulic parameters (LHGR, APLHGR, CPR) when moving a control rod. The obtained results show that is had the experience to effect analysis of the reactor behavior using the Presto-Fms code therefore the study of the rest of the software package for the obtention of nuclear parameters used in this code is recommended. (Author)

  18. Implementation of the project of equipment reliability in the nuclear power plant of Laguna Verde; Implementacion del proyecto de confiabilidad de equipo en la Central Nucleoelectrica Laguna Verde

    Energy Technology Data Exchange (ETDEWEB)

    Rios O, J. E.; Martinez L, A. G. [CFE, Central Laguna Verde, Subgerencia General de Operacion, Veracruz (Mexico)]. e-mail: jrios@cfe.gob.mx

    2008-07-01

    A equipment is reliable if it fulfills the function for which was designed and when it is required. To implement a project of reliability in a nuclear power plant this associate to a process of continuous analysis of the operation, of the conditions and faults of the equipment. The analysis of the operation of a system, of the equipment of the same faults and the parts that integrate to equipment take to identify the potential causes of faults. The predictive analysis on components and equipment allow to rectify and to establish guides to optimize the maintenance and to guarantee the reliability and function of the same ones. The reliability in the equipment is without place to doubts a wide project that embraces from the more small component of the equipment going by the proof of the parts of reserve, the operation conditions until the operative techniques of analysis. Without place of doubt for a nuclear power plant the taking of decisions based on the reliability of their systems and equipment will be the appropriate for to assure the operation and reliability of the same one. In this work would appear the project of reliability its processes, criteria, indicators action of improvement and the interaction of the different disciplines from the Nuclear Power Plant of Laguna Verde like a fundamental point for it put in operation. (Author)

  19. Electrical systems at the nuclear power plant of Laguna Verde after the event in Fukushima; Sistemas electricos en la central nucleoelectrica Laguna Verde despues del evento de Fukushima

    Energy Technology Data Exchange (ETDEWEB)

    Lopez J, J. F., E-mail: jflopez@cnsns.gob.mx [Comision Nacional de Seguridad Nuclear y Salvaguardias, Dr. Jose M. Barragan 779, Col. Narvarte, 03020 Ciudad de Mexico (Mexico)

    2016-09-15

    During the event at the nuclear power plant of Fukushima Daichii (Japan), the electrical systems were affected both Onsite and Offsite, which were lost for a long time with irreversible consequences. Therefore, the Mexican Regulatory Body known as the Comision Nacional de Seguridad Nuclear y Salvaguardias (CNSNS) has taken various actions to review the current capacity of the electrical systems at the nuclear power plant of Laguna Verde (NPP-LV) before an event beyond the design bases. The CNSNS made special inspections to the NPP-LV to verify the current capacity of the electrical systems of Ac and Dc; as a result of the inspections, requirements were generated that must be met to demonstrate that has the capacity to deal with events beyond the design bases. In addition, CNSNS has participated in the Ibero-American Forum to deal with resistance testing. Is important to note that prior to the event at the nuclear power plant of Fukushima, the NPP-LV had implemented 1) the project Extended Power Increase in both Units of the NPP-LV, and 2) the Generic Charter 2006-02, both issues are considered contributions in the robustness of electrical systems. But it is also important to mention that the US Nuclear Regulatory Commission will soon issue mitigation strategies for a Station Blackout event, which could involve new actions at nuclear power plants. Based on the aforementioned, the CNSNS concludes that all the actions being taken contribute to the strengthening of the NPP-LV electrical systems, in order to increase their reliability, safety and operation when these are required to deal with events beyond the design bases as the event occurred in Fukushima Daichii and avoid as far as possible, damage in the reactor cores of the NPP-LV. (Author)

  20. LOS ABONOS ORGÁNICOS Y LA AGREMIACIÓN CAMPESINA: UNA RESPUESTA A LA AGROECOLOGÍA

    Directory of Open Access Journals (Sweden)

    NUBIA ZORAIDA PLAZAS-LEGUIZAMÓN

    Full Text Available El arte de cultivar la tierra, con el uso de los recursos naturales, ha sido una actividad en donde el hombre obtiene del suelo y el clima: el color, aroma y sabor expresado en las diferentes estructuras vegetales.Por esto, campesinos, profesionales, empresarios, científicos y amantes de este oficio, se han dedicado a obteneralimento, piensos, fibras, maderas, entre otros productos para su bienestar.Sin embargo, con el desarrollo de esta actividad se ha degradado la naturaleza; lo que desencadenó el interés por realizar procesos agropecuarios que afecten menos a los entornos. Una de las posibilidades, es la de producir abonos orgánicos,a partir del manejo adecuado de desechos biodegradables, desde la interacción delconocimiento empírico y científico. Situación por la cual el grupo de investigación de Abonos Orgánicos Fermentados (AOF busca analizar la dinámica de asociación de agricultores entorno a la fabricación de compostajesen el marco de la agroecología;con el fin de convalidar el conocimiento campesino, en torno a la generación de empresas; aspectos que han permitido la articulación de la academia con los saberes locales.

  1. Effects of Biofertilizers Combined with Different Soil Amendments on Potted Rice Plants Efecto de Biofertilizantes Combinado con Enmiendas del Suelo sobre Plantas de Arroz en Macetas

    Directory of Open Access Journals (Sweden)

    Arshad Javaid

    2011-03-01

    Full Text Available This pot study investigated the effect of the combined application of two commercial biofertilizers viz. Biopower and EM (Effective Microorganisms on rice (Oryza sativa L. growth and yield in soils amended with farmyard manure, green manure, and NPK fertilizers. Biopower is a product of the Nuclear Institute for Biotechnology and Genetic Engineering (NIBGE, Pakistan, which contains species of associative and endophytic diazotrophs. EM (effective microorganisms, a product developed by Japanese scientists, consists of co-existing beneficial microorganisms, mainly species of photosynthetic and lactic acid bacteria, as well as yeast. Applying Biopower adversely affected plant growth and yield in NPK fertilizer amendment. Conversely, this biofertilizer markedly enhanced plant growth and yield in green manure amended soil while its effect was not significant in farmyard manure amendment. In green manure amendment, applying EM enhanced grain yield by 46%. Co-inoculation of Biopower and EM evidently improved root and shoot growth in farmyard manure amended soil. This study concludes that the two biofertilizers clearly enhanced shoot biomass and grain yield in green manure amended soils.El presente estudio en macetas fue realizado para investigar el efecto de la aplicación combinada de dos biofertilizantes comerciales, Biopower y EM (Effective Microorganisms, en el crecimiento y producción de arroz (Oryza sativa L. en suelos enmendados con estiércol de granja, abono verde y fertilizantes NPK. Biopower es un producto del Nuclear Institute for Biotechnology and Genetic Engineering (NIBGE, Pakistán, que contiene especies de diazótrofos asociativos y endofíticos. Effective Microorganisms es un producto desarrollado por científicos japoneses que consiste en microorganismos benéficos co-existentes, principalmente especies de bacterias fotosintéticas y ácido lácticas, y levadura. La aplicación de Biopower afectó adversamente el crecimiento y

  2. El uso del marketing verde por McDonald’s y la percepción del consumidor

    OpenAIRE

    de Almeida-Lemos, Leandro

    2016-01-01

    La industrialización provocó una serie de transformaciones socioeconómicas que modificaron los hábitos de consumo de la población mundial. En la sociedad actual, las personas llevan un ritmo de vida más acelerado y disponen de menos tiempo para dedicar a las actividades diarias básicas. En este contexto, surgieron los establecimientos de comida rápida, cuyos alimentos se relacionan cada vez más con enfermedades. No obstante, la explotación de los recursos naturales del planeta está afectando ...

  3. Primer reporte de Cricocephalus albus (Digenea: Pronocephalidae en el Perú, parásito de la tortuga verde del Pacífico Este (Chelonia mydas agassizii

    Directory of Open Access Journals (Sweden)

    Luis A. Gomez-Puerta

    2017-07-01

    Full Text Available Se registra por primera vez para Perú a Cricocephalus albus (Digenea: Pronocephalidae en la tortuga verde del Pacífico oriental (Chelonia mydas agassizii. Los parásitos fueron colectados durante la necropsia de una tortuga verde varada en el estuario de Virrilá localizado en la provincia de Sechura, Departamento de Piura, Perú. El presente trabajo realiza una breve descripción de C. albus, así como la discusión de sus hospederos y distribución geográfica.

  4. Del Recurso Humano al humano con recursos: una propuesta en el estudio de encadenamientos socioproductivos para el Turismo de intereses especiales en el territorio Patagonia Verde Chile

    Directory of Open Access Journals (Sweden)

    Guillermo Sebastián Pacheco Habert

    2012-01-01

    Full Text Available El tema del humano con recurso, enfoque de este trabajo, tiene un papel importantísimo a la hora de transitar de estrategias competitivas hacia estrategias colaborativas, sobre todo cuando se perciben logros ecosocioeconómicos que avanzan hacia la dirección de un desarrollo territorial. Se tiene como hipótesis, que desde el enfoque de los encadenamientos socioproductivos, centrado en el turismo de intereses especiales, es posible comprender y establecer objetivos comunes dentro de actores, organizaciones, emprendimientos y comunidades locales. El objetivo de este artículo es proponer una aproximación teórica sobre el TIE (Turismo de Intereses Especiales sobre las aglomeraciones, sobre los encadenamientos socioproductivos y sobre el enfoque del humano con recurso, para posteriormente relatar los primeros resultados de esta investigación realizada en los cinco municipios que hacen parte del territorio turístico denominado "Patagonia Verde", en el sur de Chile. A partir de la identificación de actores clave, se aplicaron entrevistas a éstos y fichas de caracterización a emprendimientos. Posteriormente se identificaron fortalezas y oportunidades que puedan ser potenciadas a partir de la perspectiva del humano con recurso. A partir de los encadenamientos socioproductivos, contar con individuos conscientes y proactivos dentro de las instituciones y organizaciones en tareas y ejes estratégicos del desarrollo turístico y que compartan con la perspectiva del desarrollo territorial sustentable, es uno de los desafíos que aquí proponemos. Son los sujetos quienes son capaces de generar las condiciones institucionales para otra forma de comprender y actuar en Turismo.

  5. Destino del nitrógeno aplicado en un cultivo de sésamo (Sesamum indicum L. en un suelo degradado de Paraguay: Fate of nitrogen applied to a sesame crop (Sesamum indicum L. in a degraded soil of Paraguay

    Directory of Open Access Journals (Sweden)

    Alba Liz González

    2014-09-01

    Full Text Available En Paraguay el cultivo de sésamo (Sesamum indicum L. es cada vez menos productivo debido a la degradación de la fertilidad de los suelos. La fertilización nitrogenada eleva los rendimientos en suelos pobres en este nutriente, pero su eficiencia aún no es bien conocida. En el estudio se utilizó la técnica isotópica para determinar el destino del N aplicado a un cultivo de sésamo. En el campo experimental de la Facultad de Ciencias Agrarias de la Universidad Nacional de Asunción, Paraguay, en un diseño experimental de bloques completos al azar se estudió la eficiencia en la aplicación de N como fertilizante y abono verde (lupino + avena negra con y sin laboreo del suelo. El N fue aplicado como urea-15N (5% enriquecimiento a razón de 50 kg/ha. Los resultados mostraron contenidos (kg/ha de N en granos (84, materia seca (104 y suelo hasta 15 cm (938. El 20% del N aplicado fue absorbido por la planta, 42% permaneció en el suelo y 38% no pudo contabilizarse y posiblemente se perdió por lixiviación y volatilización. La técnica de dilución isotópica fue útil para determinar el destino del N aplicado, pero sobreestimó el aporte de los abonos verdes en el contenido de N en el suelo.

  6. Cape Verde

    Science.gov (United States)

    2007-01-01

    This Mars Exploration Rover Opportunity Pancam 'super resolution' mosaic of the approximately 6 m (20 foot) high cliff face of the Cape Verde promontory was taken by the rover from inside Victoria Crater, during the rover's descent into Duck Bay. Super-resolution is an imaging technique which utilizes information from multiple pictures of the same target in order to generate an image with a higher resolution than any of the individual images. Cape Verde is a geologically rich outcrop and is teaching scientists about how rocks at Victoria crater were modified since they were deposited long ago. This image complements super resolution mosaics obtained at Cape St. Mary and Cape St. Vincent and is consistent with the hypothesis that Victoria crater is located in the middle of what used to be an ancient sand dune field. Many rover team scientists are hoping to be able to eventually drive the rover closer to these layered rocks in the hopes of measuring their chemistry and mineralogy. This is a Mars Exploration Rover Opportunity Panoramic Camera image mosaic acquired on sols 1342 and 1356 (November 2 and 17, 2007), and was constructed from a mathematical combination of 64 different blue filter (480 nm) images.

  7. Adquisición de carbono en frutos de color verde del muérdago Tristerix corymbosus (Loranthaceae Carbon acquisition in green fruits of Tristerix corymbosus (Loranthaceae

    Directory of Open Access Journals (Sweden)

    Cecilia I. Núñez

    2011-06-01

    Full Text Available El color verde de los frutos maduros podría atribuirse a la capacidad de adquirir carbono mediante fotosíntesis, lo cual disminuye los costos reproductivos e incrementa la recompensa nutritiva para los dispersores de semillas. En el muérdago Tristerix corymbosus (Loranthaceae el color de los frutos maduros varía según el bioma: en el matorral chileno los frutos son amarillos mientras que en el bosque templando son verdes. Nuestro objetivo fue determinar si el color de los frutos se relacionaba con la capacidad de ganar carbono vía fotosíntesis y si esta capacidad variaba con la madurez y el bioma. Realizamos mediciones fisiológicas en plantas provenientes de poblaciones de cada bioma. Los frutos, tanto inmaduros como maduros de cada bioma no mostraron adquisición neta de carbono; las hojas mostraron actividad fotosintética, éstas poseen estomas en ambas caras y los frutos carecen de ellos. Estos resultados permiten descartar la hipótesis de que el color verde de los frutos de T. corymbosus se encuentra asociado a la adquisición neta de carbono vía fotosíntesis y mantiene la necesidad de indagación de otras hipótesis sobre la variación del color de los frutos entre biomas.In some species fruits are green when they are ripe. This can be attributed to the ability to acquire carbon via photosynthesis, which reduces reproductive costs and increases nutritional reward for seed dispersers. The color of mature fruits of the mistletoe Tristerix corymbosus (Loranthaceae differ between biomes. In the Chilean matorral ripe fruits are yellow while in the temperate forest are green. Our objective was to determine whether or not fruits photosynthesize and if this ability varied with maturity stage and biome. We performed physiological measurements in plants from populations of each contrasting biome. Fruits did not denote carbon acquisition, regardless the biome or maturity stage. Leaves showed photosynthetic activity, they are amphistomatic

  8. Atributos biológicos de dos suelos de Quibor con aplicación de abono orgánico y soluciones salinas

    OpenAIRE

    Mendoza, Betty; Florentino, Adriana; Hernández-Hernández, Rosa Mary; Aciego, Juan; Torres, Duilio; Vera, Elena

    2013-01-01

    La evaluación del efecto de la aplicación de abono orgánico y soluciones salinas sobre los atributos biológicos de suelos de Quibor estado Lara, Venezuela, uno bajo manejo convencional (CV) y otro bajo manejo conservacionista (CS), se realizó mediante un ensayo de invernadero. Se utilizaron tres dosis de materia orgánica (MO): 0, 15 y 30 Mg ha-1 y cuatro soluciones de riego (SR): testigo con agua (T), sulfato de calcio (SC), cloruro de sodio (CN) y la mezcla de sulfato de calcio con cloruro d...

  9. Alternativas para enfrentar las actuales exigencias del mercado de espárrago (Asparagus officinalis L. verde en Argentina. 2. Tendencias de la demanda

    Directory of Open Access Journals (Sweden)

    Ana M. Castagnino

    2012-12-01

    Full Text Available El espárrago constituye una hortaliza muy valorada a nivel global, cuya difusión en Argentina es limitada, por lo cual se requiere de estrategias para fomentar su consumo. A tal fin se realizó una encuesta (10/11/2009 en Azul, Argentina, estudiando: preferencias acerca del consumo, beneficios de su consumo (B, calibre (C y longitud (L de turiones, tipo de envase (E, conocimiento sobre vida útil de las presentaciones (TVU, presencia de etiquetas (PE y características como color de fondo (CF y de letras (CL, lugar de compra (LC, tiempo (Ti desde la compra hasta el consumo y prioridad (P para la compra (calidad o precio, entre otros ítems. Los encuestados manifestaron preferencias de consumo de espárragos verdes y en platos calientes, mostrando desinterés por el consumo de espárragos enlatados. En B, > 95 % demostró conocer las propiedades nutricionales y saludables de los espárragos. 71 % mostró interés por calibre mediano y un 75 % cortos (15-20 cm. Respecto de E, prefirieron las presentaciones en bandejas y atados con film, y con presencia de etiquetas, color de fondo llamativo (naranja y amarillo y letra negra. El 81,1 % adquieren espárragos mediante venta directa y 50 % manifestó que transcurre entre 2 días y 1 semana entre la adquisición y el consumo, prefiriéndolos frescos y no congelados. En P, el 90 % priorizó calidad en lugar del precio. Estos resultados indican que los consumidores no son indiferentes a los atributos de presentación del producto, por lo cual los empresarios deberían esforzarse por mejorar las dimensiones de la calidad del producto, por lo que se verían recompensados.

  10. Alternativas para enfrentar las actuales exigencias del mercado de espárrago (Asparagus officinalis L. verde en Argentina. 2. Tendencias de la demanda

    Directory of Open Access Journals (Sweden)

    Ana M. Castagnino

    2012-01-01

    Full Text Available El espárrago constituye una hortaliza muy valorada a nivel global, cuya difusión en Argentina es limitada, por lo cual se requiere de estrategias para fomentar su consumo. A tal fin se realizó una encuesta (10/11/2009 en Azul, Argentina, estudiando: preferencias acerca del consumo, beneficios de su consumo (B, calibre (C y longitud (L de turiones, tipo de envase (E, conocimiento sobre vida útil de las presentaciones (TVU, presencia de etiquetas (PE y características como color de fondo (CF y de letras (CL, lugar de compra (LC, tiempo (Ti desde la compra hasta el consumo y prioridad (P para la compra (calidad o precio, entre otros ítems. Los encuestados manifestaron preferencias de consumo de espárragos verdes y en platos calientes, mostrando desinterés por el consumo de espárragos enlatados. En B, > 95 % demostró conocer las propiedades nutricionales y saludables de los espárragos. 71 % mostró interés por calibre mediano y un 75 % cortos (15-20 cm. Respecto de E, prefirieron las presentaciones en bandejas y atados con film, y con presencia de etiquetas, color de fondo llamativo (naranja y amarillo y letra negra. El 81,1 % adquieren espárragos mediante venta directa y 50 % manifestó que transcurre entre 2 días y 1 semana entre la adquisición y el consumo, prefiriéndolos frescos y no congelados. En P, el 90 % priorizó calidad en lugar del precio. Estos resultados indican que los consumidores no son indiferentes a los atributos de presentación del producto, por lo cual los empresarios deberían esforzarse por mejorar las dimensiones de la calidad del producto, por lo que se verían recompensados.

  11. Procedimiento para la obtención de una solución favorecedora del crecimiento de plantas a partir de aguas de lavado del proceso de elaboración de aceitunas verdes estilo español y uso de dicha solución

    OpenAIRE

    Romero Barranco, Concepción; Medina Pradas, Eduardo; Castro Gómez-Millán, Antonio de; Brenes Balbuena, Manuel; Santos, Berta de los; Romero, Fernando

    2011-01-01

    La presente invención se refiere a un procedimiento para la obtención de una solución favorecedora del crecimiento de plantas a partir de aguas de lavado del proceso de elaboración de aceitunas verdes estilo español o sevillano, caracterizado porque comprende las siguientes etapas: (a) acidificación del agua de lavado hasta un valor de pH inferior a 3 unidades; (b) almacenamiento del agua en condiciones anaeróbicas; y (c) elevación del pH del concentrado hasta un valor superior a 4 unidades. ...

  12. Persistencia y cambio de las unidades de producción hortícola en el Cinturón Verde del Gran Rosario

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    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.

  13. Talento verde y cadenas de suministro verdes: ¿existe una relación significativa?

    Directory of Open Access Journals (Sweden)

    María del Carmen Torres-Salazar

    2016-01-01

    Full Text Available Introducción: En este texto se presentan resultados estadísticos de la relación entre directivos con características de talento verde y la implementación de prácticas de cadena de suministro verde. Debido a que existen investigaciones sobre la importancia de la visión de la alta dirección para la adopción de prácticas verdes; y sin embargo ninguna da cuenta de las características personales del directivo, ni tampoco de la relación significativa entre estas características y la puesta en marcha de prácticas de cadena de suministro verde, esta es la aportación de la presente investigación. El trabajo se desarrolló en empresas manufactureras con más de diez trabajadores de la zona oriente del estado de Morelos México. La caracterización del término talento verde se reportó en el artículo, Talento verde: caracterización y búsqueda, publicado en el número 14 de esta revista. Método: El método utilizado consistió en la construcción de una encuesta dividida en tres categorías que posteriormente se convirtieron en variables: prácticas de cadena de suministro verde, presiones institucionales y talento verde. Las dos primeras se adaptaron de la encuesta de Zhu y Sarkis (2007 y la tercera surgió de la representación social de talento verde, producto de una fase de esta investigación. La encuesta se validó con un grupo de empresarios miembros de la Cámara Nacional de la Industria de la Transformación (CANACINTRA capítulo Morelos. El instrumento validado se aplicó a 26 directivos de empresas manufactureras con más de diez trabajadores de la zona oriente de Morelos, con el fin de probar la relación entre directivos con características de talento verde y la puesta en marcha de prácticas de cadena de suministro verde. Para ello se utilizaron como herramientas estadísticas la correlación de Pearson y la regresión lineal múltiple. Resultados: Las prácticas de cadena de suministro verde de las empresas

  14. Communities of soil macrofauna in green spaces of an urbanizing city at east China Comunidades de macrofauna del suelo en espacios verdes de una ciudad en proceso de urbanización en el este de China

    Directory of Open Access Journals (Sweden)

    GE BAO-MING

    2012-06-01

    Full Text Available We evaluated the diversity of soil macrofauna communities inhabiting urban green spaces in Yancheng City, an urbanizing city located east of China. In the end of April 2011, the taxonomic richness, abundance and composition of soil macrofauna communities were assessed and compared among five types of green space (poplar forest, rapeseed farm, grassland in park, lawn and nursery garden and three depth layers in the soil, with taxonomic resolution attained at the order level. Taxonomic richness (orders and abundance were significantly different among green spaces. Diversity indices (Margalef's taxonomic richness R and Shannon-Weaver diversity index H' were higher in poplar forest, grassland in park and nursery garden than in rapeseed farm and lawn. Taxonomic richness (Chao 2 showed a similar trend. There were significant effects of green space type and soil layer, which showed a significant interaction affecting macrofauna composition. We recommend that urban green spaces can be used for maintaining biodiversity, not only for landscape purposes.Evaluamos la diversidad de las comunidades de macrofauna del suelo que habitan los espacios verdes urbanos en la ciudad de Yancheng, una ciudad en proceso de urbanización situada al este de China. A fines de abril 2011, la riqueza taxonómica, abundancia y composición de comunidades de macrofauna del suelo fueron evaluadas y comparadas entre cinco tipos de espacio verde (bosque de álamos, granja de colza, pastizal de parque, césped y jardín vivero y tres capas de profundidad del suelo, con resolución taxonómica a nivel de orden. La riqueza taxonómica (de órdenes y la abundancia fueron significativamente diferentes entre los espacios verdes. Los indices de diversidad (riqueza taxonómica R de Margalef y diversidad H' de Shannon-Weaver fueron mayores en el bosque de álamos, pastizal de parque y jardin vivero que en la granja de la colza y el césped. La riqueza taxonómica (Chao 2 mostró una

  15. Estado poblacional del Almendro como indicador de la disponibilidad de hábitat de Lapa Verde en el Sureste de Nicaragua

    Directory of Open Access Journals (Sweden)

    Armando J. Dans

    2015-04-01

    Full Text Available La investigación se realizó en siete comunidades del Sureste de Nicaragua, con el objetivo de determinar el estado actual de la población de almendro (Dipteryx panamensis, como indicador del hábitat potencial para la lapa verde (Ara ambiguus. Se muestrearon 21 parcelas de 1ha cada una, estableciendo tres parcelas por comunidad, también se entrevistaron a pobladores para determinar la relación de éstos con las especies en estudio. En las parcelas muestreadas, se contabilizaron un total de 93 árboles de almendro con Diámetro a la Altura del Pecho (DAP’s ≥70cm, lo que representa una densidad promedio de 4.4 almendros/ha. También, se identificaron posibles amenazas para las especies en estudio y su particularidad con las comunidades y grupos étnicos. Resultados de Modelos Lineales Generalizados (GLM y análisis de correlación, indican que en la zona de estudio, no es el tamaño o diámetro de los almendros lo que mantiene poblaciones de lapas, sino que influyen mucho la densidad de individuos con DAP≥70cm, el nivel de aislamiento de la comunidad y la cantidad y tipo de usos que le dan los pobladores al árbol. Desde los modelos de Maxent, en los alrededores de 5 comunidades (La Bijagua, Bartola, Indian River, Corn River y Point of Rock presentan condiciones viables para la distribución del hábitat potencial del almendro y por ende de lapas verdes.SummaryThe research was done in seven communities in the southeast of Nicaragua, in order to determine the current condition of almond-tree population (Dipteryx panamensis, as an indicator of potential habitat for the Green Macaw (Ara ambiguus. 21 plots of 1ha each were sampled, by establishing three plots per community. Community people were also interviewed to determine their relationship with the species object of study. In the sampled plots, a total of 93 almond-trees were counted with Diameter at Breast Height (DBH's ≥70cm, representing an average density of 4.4 almond

  16. Evaluación del desempeño ambiental bajo enfoque de cadena de abastecimiento verde

    Directory of Open Access Journals (Sweden)

    William Ariel Sarache-Castro

    2015-01-01

    Full Text Available Entre los enfoques existentes de gestión ambiental, la gestión de cadenas de abastecimiento verde (Green Supply Chain Managemen t, GSCM, se ha convertido en uno de los más relevantes en los últimos años. El en foque GSCM aborda todos los procesos y actividad es que componen la cadena de abastecimiento en los eslabones de aprovi sionamiento, manufactura y entregas, incluyendo también el diseñ o, las compras, el marketing y la logística inve rsa. Aunque la revisión bibliográfica permiti ó identificar la existencia de una gran v ariedad de indicadores de desempeño ambiental que se enmarcan en el enfoque PresiónEstadoRes puesta, no se encontraron indicadores aplica dos bajo un enfoque GSCM. Por tanto, el presente ar tículo expone una metodología para la cons trucción de un indicador de corte multicrit erio que permite evaluar el desempeño ambiental desde el enfoque GSCM, con base en 8 procesos y 32 actividades detectadas en la revisión de literatura. El indicador fue aplicado en un grupo de 14 empresas de la región cafetera de Colombia. Los resultados indican un d esempeño heterogéneo entre las compañías analizadas y un rezago importante en algunos procesos.

  17. Core reactor simulation of the Central Laguna Verde (CLV) reactor in stationary state and an example of the application in the recharge options analysis of cycle 3; Simulacion del nucleo del reactor de la Central Laguna Verde (CLV) en estado estacionario y ejemplo de aplicacion en el analisis de alternativas de recarga del ciclo 3

    Energy Technology Data Exchange (ETDEWEB)

    Ocampo Mansilla, Hector; Francois Lacouture, Juan Luis; Blanco Lara, Jesus; Cortes Campos, Carlos Cristobal; Esquivias Montoya, Jesus; Esquivel Torres, Jose Luis; Martin del Campo Marquez, Cecilia [Instituto de Investigaciones Electricas, Cuernavaca (Mexico); Montes Tadeo, Jose Luis [Instituto Nacional de Investigaciones Nucleares (ININ), Salazar (Mexico); Sanchez Herrera, Luciano; Torres Alvarez, Carlos [Comision Federal de Electricidad (CFE), Mexico, D. F. (Mexico)

    1991-12-31

    The results are presented of a study requested by Comision Federal de Electricidad (CFE) for the analysis of Cycle 3, of Unit No. 1 of the Laguna Verde Nuclear Power Station (CLNV) and determine the burning effect impact, carried out with the starting tests and the operation of Cycles 1 and 2 on base of the cycle extension known as coastdown. The calculations were realized with the Code Package FMS for fuel managing, using the Code PRESTO-B that analyzes the reactor in detailed form in three dimensions an in stationary state. In the study the schemes of fraction of recharge proposed by General Electric (GE) were analyzed with the effect of cycle extension. The initial design value of 100 assemblies for Cycle 3, GE proposes to increase such fraction from 112 to 120 assemblies. This impacts the cost of the second recharge and the purpose of this investigation is to analyze options with higher fuel enrichment in U-235 to minimize the number of assemblies in this recharge. The analyses effected show that the designs proposed by GE do not fulfill the required energy proposed for the cycle, even using in the recharge only fuel with 3.03% of enrichment. It is proposed, likewise, the fuel enrichment up to 3.25% to satisfy the energy demand with a minimum of assemblies. [Espanol] Se presentan los resultados de un estudio solicitado por la Comision Federal de Electricidad (CFE) para analizar el ciclo 3, de la unidad 1 de la Central Laguna Verde (CLV), y determinar el impacto del efecto de quemado llevado a cabo con las pruebas de arranque y por la operacion de los ciclos 1 y 2 con base en la tecnica de alargamiento del ciclo conocida como coastdown1. Los calculos se realizaron con el paquete de codigos FMS para la administracion de combustible, usando el codigo PRESTO-B que analiza el reactor en forma detallada en tres dimensiones y en estado estacionario. Se analizaron en el estudio los esquemas de fraccion de recarga propuesta por la General Electric (GE) con el efecto de

  18. Core reactor simulation of the Central Laguna Verde (CLV) reactor in stationary state and an example of the application in the recharge options analysis of cycle 3; Simulacion del nucleo del reactor de la Central Laguna Verde (CLV) en estado estacionario y ejemplo de aplicacion en el analisis de alternativas de recarga del ciclo 3

    Energy Technology Data Exchange (ETDEWEB)

    Ocampo Mansilla, Hector; Francois Lacouture, Juan Luis; Blanco Lara, Jesus; Cortes Campos, Carlos Cristobal; Esquivias Montoya, Jesus; Esquivel Torres, Jose Luis; Martin del Campo Marquez, Cecilia [Instituto de Investigaciones Electricas, Cuernavaca (Mexico); Montes Tadeo, Jose Luis [Instituto Nacional de Investigaciones Nucleares (ININ), Salazar (Mexico); Sanchez Herrera, Luciano; Torres Alvarez, Carlos [Comision Federal de Electricidad (CFE), Mexico, D. F. (Mexico)

    1992-12-31

    The results are presented of a study requested by Comision Federal de Electricidad (CFE) for the analysis of Cycle 3, of Unit No. 1 of the Laguna Verde Nuclear Power Station (CLNV) and determine the burning effect impact, carried out with the starting tests and the operation of Cycles 1 and 2 on base of the cycle extension known as coastdown. The calculations were realized with the Code Package FMS for fuel managing, using the Code PRESTO-B that analyzes the reactor in detailed form in three dimensions an in stationary state. In the study the schemes of fraction of recharge proposed by General Electric (GE) were analyzed with the effect of cycle extension. The initial design value of 100 assemblies for Cycle 3, GE proposes to increase such fraction from 112 to 120 assemblies. This impacts the cost of the second recharge and the purpose of this investigation is to analyze options with higher fuel enrichment in U-235 to minimize the number of assemblies in this recharge. The analyses effected show that the designs proposed by GE do not fulfill the required energy proposed for the cycle, even using in the recharge only fuel with 3.03% of enrichment. It is proposed, likewise, the fuel enrichment up to 3.25% to satisfy the energy demand with a minimum of assemblies. [Espanol] Se presentan los resultados de un estudio solicitado por la Comision Federal de Electricidad (CFE) para analizar el ciclo 3, de la unidad 1 de la Central Laguna Verde (CLV), y determinar el impacto del efecto de quemado llevado a cabo con las pruebas de arranque y por la operacion de los ciclos 1 y 2 con base en la tecnica de alargamiento del ciclo conocida como coastdown1. Los calculos se realizaron con el paquete de codigos FMS para la administracion de combustible, usando el codigo PRESTO-B que analiza el reactor en forma detallada en tres dimensiones y en estado estacionario. Se analizaron en el estudio los esquemas de fraccion de recarga propuesta por la General Electric (GE) con el efecto de

  19. Empleo del aprendizaje basado en problemas (abp. Una propuesta para acercarse a la química verde

    Directory of Open Access Journals (Sweden)

    Marina Lucía Morales Galicia

    2013-05-01

    Full Text Available Los profesores han reflexionado acerca de que la educación ambiental deberá ser formativa, por lo que es importante participar para cambiar esta situación dentro del contexto en la enseñanza de las Ciencias Naturales como parte de incrementar el conocimiento acerca del deterioro del medio ambiente. Este trabajo tiene el propósito de presentar la estrategia Aprendizaje Basado en Problemas (ABP. Para demostrar esta metodología, se presentan los resultados que con esta se obtuvieron gracias a la colaboración tanto de un grupo de alumnos mexicanos del nivel bachillerato, así como de profesores participantes chilenos del nivel secundaria (estudios equivalentes en México. El empleo de esta herramienta didáctica proporcionó un aprendizaje significativo en alumnos y profesores, quienes emplearon sus conocimientos previos para abordar un nuevo aprendizaje, quedando realmente impresionados al enterarse de que el problema propuesto sucedía en su país y de toda la secuela ambiental que generaría el que se siguiera sucediendo o se llevara a cabo. Se consiguió que los participantes aportaran ideas novedosas durante el desarrollo de su trabajo y que aceptaran con gusto la responsabilidad para hacer suyos problemas reales que son parte de su cotidianidad.

  20. Características agronómicas de la soya en función de las densidades de siembra y profundidad de deposición de abono

    Directory of Open Access Journals (Sweden)

    Jorge Wilson Cortez

    2011-02-01

    Full Text Available El objetivo de este trabajo fue evaluar las características agronómicas de la soya sembrada en Sistema de Siembra Directa, en función de las densidades de siembra (15, 16 y 20 plantas por metro y la profundidad de deposición de abono (11, 14 y 17 cm. El experimento fue realizado en el Departamento de Ingeniería Rural, UNESP/Jaboticabal, utilizando, en el delineamiento, parcelas subdivididas en bloques al acaso, con cuatro repeticiones. Características agronómicas de la soya analizadas: número de días de aparición, índice de aparición, porcentaje de daños, altura de plantas, altura de inserción de la primera vaina, vainas por planta, granos por vaina, porcentaje de plantas sobrevivientes y productividad. Los resultados indicaron que el número de días de aparición, índice de aparición y el porcentaje de daños, no fueron influenciados por las densidades y la profundidad de deposición de abono. Los daños por insectos y aves fueron del orden de 30% de plantas atacadas. La altura de plantas, altura de inserción de la primera vaina, vainas por planta y granos por vaina no variaron en relación a la densidad y profundidad de deposición de abono. La productividad de la soya (5.146 kg ha-1 fue semejante en las densidades y profundidades de deposición de abono.

  1. Respuesta del chile mirasol a la labranza reducida, enmiendas al suelo y acolchado plástico

    OpenAIRE

    Amador-Ramírez, Mario Domingo; Velásquez-Valle, Rodolfo; Sánchez-Toledano, Blanca Isabel; Acosta-Díaz, Efraín

    2013-01-01

    El interés por la sostenibilidad de algunos sistemas de chile seco (Capsicum annuum L.) proviene de la producción intensiva a la que es sometida este cultivo, lo cual es causada por el uso excesivo de actividades agrícolas. El objetivo de este estudio fue: 1) evaluar los efectos de la labranza reducida, incorporación de abono verde, incorporación de abono seco y la asociación riego por goteo + acolchado plástico en el crecimiento y rendimiento de chile seco, al comparar estos efectos con aque...

  2. INFLUENCIA DE LA FERMENTACIÓN LÁCTICA (ABONO BOKASHI) EN EL PRE-COMPOST PARA LA PRODUCCIÓN DE BIOGÁS Y BIOL EN BIODIGESTORES TIPO BATCH

    OpenAIRE

    Torres T., Allen; Igeniero Ambiental Egresado de la UNALM, Lima (Perú).; Quipuzco U., Lawrence; Universidad Nacional Agraria La Molina (Perú).; Meza C., Víctor; Universidad Nacional Agraria La Molina (Perú).

    2015-01-01

    El trabajo de investigación titulado: “Influencia de la fermentación láctica (abono bokashi) en el pre-compost para la producción de biogás y biol en biodigestores tipo batch” surge como una alternativa de tratamiento previo a los sustratos antes de colocarlos en los biodigestores y de esta manera mejorar la calidad de los subproductos generados: biogás y biol. La investigación se inició en Agosto del 2012, empleándose reactores que simulan a un biodigestor del tipo batch para tres tratamient...

  3. El uso del espacio verde urbano: entre lo privado y lo público, estética y rendimiento económico. La Casa de Campo, parque de Madrid

    Directory of Open Access Journals (Sweden)

    Müllauer-Seichter, Waltraud

    2001-06-01

    Full Text Available The author analyzes the perception of public open green areas in Madrid. Through the study of the «Casa de Campo» park, she aims to show how this green area has been used in different ways. The Casa de Campo has both an aesthetic and an economic purpose. In Northern Europe, open areas such as this one are often places which people use for contemplation and solitude; in contrast, in Southern Europe people tend to utilize these parks as meeting arenas, for socializing.

    La autora analiza la percepción de los espacios verdes en Madrid. A través del ejemplo de la Casa de Campo, muestra cómo el espacio verde tiene una función doble: estética y económica a la vez. En el sur de Europa, a diferencia de lo que ocurre en el norte, donde se busca especialmente la soledad y la contemplación, estos espacios verdes sirven como importantes lugares de encuentro social.

  4. Sesbania Rostrata as alternative nutrient source for the rice crop La Sesbania Rostrata como fuente alternativa de nutrientes en el cultivo del arroz A Sesbania Rostrata como fonte alternativa de nutrientes para a cultura do de arroz

    Directory of Open Access Journals (Sweden)

    Olegario Muñiz Ugarte

    2012-11-01

    Full Text Available This study evaluated the effect of using the green manure Sesbania rostrata as a preceding crop on the agricultural yield of rice. The rice was cultivated with two levels of mineral fertilizers (50 and 100% of the economical optimum level of N-P-K. Additionally, the contribution to the nitrogen nutrition of rice from the green manure previously incorporated into the soil was studied in pots using 15N stable isotope analysis. The results indicated that the Sesbania rostrata incorporation allowed the paddy rice yield to increase by at least 1 Mg ha-1 and to save 50% of the mineral fertilization employed, during two consecutive harvests. The 15N isotope analysis showed that although the N accumulation by the crop was significantly stimulated, the green manure N did not contribute directly to the growth of the rice plants, at least during their first cycle. Nevertheless, it is expected that in the medium term, the organic N derived from this green manure would restore the soil mineralized N extracted by the rice crop, thereby balancing the N losses in the system and even improving the soil nitrogen fertility.En este trabajo se evalúa el efecto del abono verde Sesbania rostrata como cultivo precedente sobre el rendimiento agrícola del arroz, cultivado con dos dosis de fertilizantes minerales (50 y 100% de la dosis N-P-K óptima económica. Adicionalmente, se estudió la contribución del abono verde previamente incorporado al suelo a la nutrición nitrogenada del arroz en macetas y empleando el isótopo 15N. Los resultados obtenidos indicaron que la incorporación de la Sesbania rostrata posibilita el incremento del rendimiento agrícola de arroz cáscara en al menos 1 Mg ha-1 y el ahorro del 50% de la fertilización mineral empleada durante dos cosechas consecutivas. Los análisis de 15N mostraron que el abono verde no contribuyó directamente con N al crecimiento de las plantas de arroz, al menos en su primer ciclo, aunque estimul

  5. Participation of the ININ in the external radiological emergency plan of the Laguna Verde power plant; Participacion del ININ en el plan de emergencia radiologica externo de la Central Laguna Verde

    Energy Technology Data Exchange (ETDEWEB)

    Martinez S, R; Cervini L, A [ININ, 52045 Ocoyoacac, Estado de Mexico (Mexico)

    1991-07-01

    The planning of performances in radiological emergencies, with the object of reducing the consequences as much as possible on the population to accidental liberations of radioactive material coming from Nuclear power plant, it has been of main interest in the nuclear community in the world. In Mexico it has not been the exception, since with the setting in march of the Laguna Verde nuclear power plant exists an executive program of planning for emergencies that it outlines the activities to follow trending to mitigate the consequences that are derived of this emergency. As integral part of this program this the External Plan of Radiological Emergency (PERE) that covers the emergencies that could leave the frontiers of the Laguna Verde power plant. In the PERE it settles down the planning, address and control of the preparation activities, response and recovery in emergencies, as well as the organization and coordination of the institutions that participate. The National Institute of Nuclear Research (ININ), like integral part of these institutions in the PERE, has an infrastructure that it allows to participate in the plan in a direct way in the activities of 'Control of the radiological exhibition the response personnel and control of water and foods' and of support way and consultant ship in the activities of 'Monitoring, Classification and decontamination of having evaluated' and 'Specialized medical radiological attention'. At the moment the ININ has a radiological mobile unit and this conditioning a second mobile unit to carry out part of the activities before mentioned; also accounts with 48 properly qualified people that directly intervene in the plan. In order to guarantee an adequate response in the PERE an organization it has been structured like that of the annex as for the personnel, transport, team, procedures and communication system, with the objective always of guaranteeing the security and the population's health in emergency situations in the

  6. Introduction of fuel GE14 in the nuclear power plant of Laguna Verde for the extended increase of power; Introduccion del combustible GE14 en la central nuclear Laguna Verde para el aumento de potencia extendido

    Energy Technology Data Exchange (ETDEWEB)

    Hernandez M, N.; Vargas A, A. F.; Cardenas J, J. B.; Contreras C, P. [CFE, Central Nuclear Laguna Verde, Subgerencia de Ingenieria, Carretera Veracruz-Medellin Km. 7.5 (Mexico)]. e-mail: natividad.hernandez@cfe.gob.mx

    2008-07-01

    The project of extended increase of power responds to a necessity of electrical energy in the country, increasing the thermal exit of the reactors of the nuclear power plant of Laguna Verde of 2027 MWt to 2317 MWt. In order to support this transition, changes will make in the configuration of the reactor core and in the operation strategies of the cycle, also they will take initiatives to optimize the economy in fuel cycle. At present in both reactors of the nuclear plant of Laguna Verde fuel GE12 is used. The fuel GE14 presents displays with respect to the GE12, some improvements in the mechanical design and consequently in its performance generally. Between these improvements we can mention: 1. Spacers of high performance. 2. Shielding with barrier. 3. Filter for sweepings {sup d}ebris{sup a}nd 4. Fuel rods of minor partial length. The management of nuclear power plants has decided to introduce the use of fuel GE14 in Laguna Verde in the reload 14 for Unit 1 and of the reload 10 for Unit 2. The process of new introduction fuel GE14 consists of two stages, first consists on subjecting the one new design of fuel to the regulator organism in the USA: Nuclear Regulatory Commission, in Mexico the design must be analyzed and authorized by the National Commission of Nuclear Safety and Safeguards, for its approval of generic form, by means of the demonstration of the fulfillment with the amendment 22 of GESTAR II, the second stage includes the specific analyses of plant to justify the use of the new fuel design in a reload core. The nuclear plant of Laguna Verde would use some of the results of the security analyses that have been realized for the project of extended increase of power with fuel GE14, to document the specific analyses of plant with the new fuel design. The result of the analyses indicates that the reload lots are increased of 116-120 assemblies in present conditions (2027 MWt) to 140-148 assemblies in conditions of extended increase of power (2317 MWt

  7. Estudios ecológicos en el Páramo de Cruz Verde, Colombia. IV. La actividad biológica del suelo en diferentes asociaciones vegetales Estudios ecológicos en el Páramo de Cruz Verde, Colombia. IV. La actividad biológica del suelo en diferentes asociaciones vegetales

    Directory of Open Access Journals (Sweden)

    Schnetter Marie-Luise

    1976-09-01

    Full Text Available Se determinaron la respiración y la actividad de celulosólisis del suelo en las asociaciones vegetales de Diplostephium revolutum degradada, de Calamagrostis effusa, Espeletia grandiflora y Geranium santanderiense, de Calamagrostis effusa y Altesteinia fimbriata y de un bosque bajo de páramo en el Páramo de Cruz Verde (Cundinamarca. La mayoría de los promedios de la respiración del suelo se situaba entre 120 y 190 mg CO2/m2h. Valores menores se determinaron dos veces en la asociación degradada de Diplostephium revolutum (82,4 mg CO2/m2h, 72,5 mg CO2/m2h, valores mayores una vez en la asociación de Colamagrostis effusa y Altesteinia fimbriata (220,2 mg CO2/m2h y en el bosque bajo de páramo (245,1 mg CO2/m2h.   La actividad de celulosólisis en el bosque bajo de páramo superaba notablemente la de las otras asociaciones vegetales mencionadas, en contraste en la asociación degradada de Diplostephium revolutum no se notó alguna descomposición de celulosa. In vier Pflanzengesellschaften des Páramo de Cruz Verde (Cundinamarca, nämlich der degradierten Diplostephium revolutum - Gesellschaft, der Calamagrostis effusa • Espeletia grandiflora - Geranium santanderiense - Gesellschaft, der Calamagrostis effusa - Altesteinia fimbriata - Gesellschaft und einer Gesellschaft des Páramo - Buschwaldes wurden Bodenatmung und zellulolytische Aktivität bestimmt.  Die Mehrzahl der bei den Bodenatmungsbestimmungen gefundenen Mittelwerte lag zwischen 120 und 190 mg CO2/m2h.  In der degradierten Diplostephium revolutum. - Gesellschaft wurde zweimal ein niedrigerer (82,4 mg CO2/m2h, 72,5 mg CO2/m2h, in der Calamagrostis effusa - Altesteinia fimbriata -Gesellschaft (220,2 mg CO2/m2h und im Páramo -Buschwald (245,1 mg CO2/m2h jeweils einmal ein höherer Wert bestimmt.  Die zellulolytische Aktivität war im Päramo - Buschwald um ein Vielfaches höher als in den drei anderen Pflanzengesellschaften, wo in der degradierten Diplostephium. revolutum

  8. Validation of the thermal balance of Laguna Verde turbine under conditions of extended power increase; Validacion del balance termico de turbina de Laguna Verde en condiciones de aumento de potencia extendido

    Energy Technology Data Exchange (ETDEWEB)

    Castaneda G, M. A.; Cruz B, H. J.; Mercado V, J. J.; Cardenas J, J. B.; Garcia de la C, F. M., E-mail: miguel.castaneda01@cfe.gob.mx [Comision Federal de Electricidad, Central Nucleoelectrica Laguna Verde, Carretera Cardel-Nautla Km 42.5, Alto Lucero, Veracruz (Mexico)

    2012-10-15

    The present work is a continuation of the task: Modeling of the vapor cycle of Laguna Verde with the PEPSE code to conditions of thermal power licensed at present (2027 MWt) in which the modeling of the vapor cycle of the nuclear power plant of Laguna Verde was realized with PEPSE code (Performance Evaluation of Power System Efficiencies). Once reached the conditions of nominal operation of extended power increase, operating both units to 2371 MWt; after the tests phase of starting-up and operation is necessary to carry out a verification of the proposed design of the vapor cycle for the new operation conditions. All this, having in consideration that the vapor cycle designer only knows the detail of the prospective performance of the main turbine, for all the other components (for example pumps, heat inter changers, valves, reactor, humidity separators and re-heaters, condensers, etc.) makes generic suppositions based on engineering judgment. This way carries out the calculations of thermal balance to determine the guaranteed gross power. The purpose of the present work is to comment the detail of the validation carried out of the specific thermal balance (thermal kit) of the nuclear power plant, making use of the design characteristics of the different components that conform the vapor cycle. (Author)

  9. Dinámicas de ocupación urbana del Anillo Verde metropolitano, desde sus orígenes en el Plan General del Área Metropolitana de Madrid de 1963 hasta el Plan General de Ordenación Urbana de 1997

    OpenAIRE

    Jiménez Garcinuño, Lourdes

    2015-01-01

    El Anillo Verde metropolitano, definido por el Plan General de Ordenación Urbana del Área Metropolitana de Madrid en 1963 siguiendo los modelos planteados por la cultura urbanística internacional, como armadura de la estructura urbana del AMM, espacio protagonista dentro del sistema de espacios libres, lugar de uso público destinado al recreo y contacto con la naturaleza de la población madrileña, se convierte en realidad en una reserva de suelo que va entrando en juego motivado por las alian...

  10. Simulación de diferentes alternativas de gestión de los recursos hídricos del acuífero costero del río Verde (Almuñécar, España

    Directory of Open Access Journals (Sweden)

    Cruz-Sanjulián, J.

    1997-08-01

    Full Text Available The effects of various alternatives in managing the water from a coastal aquifer with sea-water intrusion problems (the river Verde alluvial aquifer, Almuñecar, Granada, Spain have been analyzed by means of a finite element approximation. The differential equation which describes the horizontal flow of groundwater and the movement of a sharp interface between the fresh and salt water is solved in a steady state regimen for boundaries with flow and open boundary conditions. This stationary solution has shown very accurate results in calculating freshwater potentials, thicknesses of fresh and salt water, discharges of fresh water and the intrusion of salt water along the coast. Various alternatives were simulated in the aquifer which included: the operation of the planned Otivar reservoir at the head of the catchment basin, changes in the location of extractions from the aquifer, and artificial recharge by urban waste water in the proximity of the coast. These simulations revealed that a considerable advance in the interface is to be expected if the current pumping exploitation continues and a significant part of the surface flow of the river Verde is channeled from the planned Otivar reservoir to irrigate the Almuñécar plain. On the other hand, the injection of urban waste water in the proximity of the coast would contribute to limiting the advance of the interface in the aquifer. However, the replacement of exploitation by pumping wells, currently spread aH over the aquifer's surface area, by a comparatively shallower extraction close to the coast, would seem to constitute the most effective way of containing the advance of the interface. e, even for small flows discharging into the sea as a consequence of intensive exploitation.Mediante una aproximación por elementos finitos se analizan los efectos de diferentes alternativas de gestión del agua de un acuífero costero con problemas de intrusión marina (acuífero aluvial del río Verde

  11. Fuel management inside the reactor. Report of generation of the nuclear bank for the fuel of the initial load of the Laguna Verde U-1 reactor with the FMS codes; Administracion de combustible dentro del reactor. Reporte de generacion del banco nuclear para el combustible de la carga inicial del reactor de Laguna Verde U-1 con los codigos del FMS

    Energy Technology Data Exchange (ETDEWEB)

    Alonso V, G. [ININ, 52045 Ocoyoacac, Estado de Mexico (Mexico); Torres A, C. [CFE, Veracruz (Mexico)

    1991-06-15

    In this work in a general way the form in that it was generated the database of the initial fuel load of the Laguna Verde Unit 1 reactor is described. The initial load is formed with fuel of the GE6 type. The obtained results during the formation of the database in as much as to the behavior of the different cell parameters regarding the one burnt of the fuel and the variation of vacuums in the coolant channel its are compared very favorably with those reported by the General Electric fuel supplier and reported in the design documents of the same one. (Author)

  12. SIMPRO, a practical tool for training the staff of Laguna Verde nuclear power plant; El SIMPRO, una herramienta practica para la capacitacion y entrenamiento del personal de la CNLV

    Energy Technology Data Exchange (ETDEWEB)

    Hernandez Valdez, Guillermo Omar; Gomez Camargo, Octavio; Castelo Cuevas, Luis; Vazquez Bustos, Jesus [Instituto de Investigaciones Electricas, Cuernavaca, Morelos (Mexico)

    2012-06-22

    Laguna Verde Nuclear Power Plant (LVNPP) has implemented a real physical model, which represents several parts of a simplified version of its process. This development has proved to be very useful to improve the compliance with training programs and staff training maintenance in the different disciplines of engineering. Such programs are required by regulations and standards applicable for Nuclear Power Plants (NPP), so that the personnel working in these facilities can be able to respond on time to any contingency that might arise. This paper outlines the creation of the real physical model, how it is integrated and some of the practices that can be performed on this model. [Spanish] La Central Nucleoelectrica de Laguna Verde ha implementado un modelo fisico real que representa varias partes de una version simplificada de su proceso. Este desarrollo ha demostrado ser muy util para mejorar el cumplimiento de programas de adiestramiento, incluidos los del personal de mantenimiento, en diferentes disciplinas de ingenieria. Dichos programas son requeridos por las regulaciones y normas aplicables a las centrales nucleoelectricas, de manera que el personal que trabaja en estas instalaciones pueda ser capaz de responder oportunamente a cualquier contingencia que pudiera surgir. Este articulo describe la creacion del modelo fisico real, como se integra y algunas de las practicas que pueden llevarse a cabo con el.

  13. Participation of the ININ in the activities of radioactive waste management of the Laguna Verde Central; Participacion del ININ en las actividades de gestion de desechos radiactivos de la Central Laguna Verde

    Energy Technology Data Exchange (ETDEWEB)

    Medrano L, M.; Rodriguez C, C.; Linares R, D. [ININ, Gerencia Subsede Sureste (Mexico); Ramirez G, R.; Zarate M, N. [Central Laguna Verde, CFE (Mexico)]. e-mail: maam@nuclear.inin.mx

    2006-07-01

    From the beginning of the operation of the Laguna Verde Central (CLV) the National Institute of Nuclear Research (ININ) has come supporting the CLV in the activities of administration of the humid and dry radioactive waste generated by the operation of the two units of the CLV, from the elaboration of procedures to the temporary storage in site, the implementation of a program of minimization and segregation of dry solid wastes, until the classification of the lots of humid waste and bulk dry wastes. In this work the description of the management activities of radioactive wastes carried out by the ININ in the facilities of the CLV to the date is presented, as well as some actions that they are had drifted in the future near, among those that it stands out the determination of the total alpha activity in humid samples by means of scintillation analysis. (Author)

  14. Applications of the monitor of loose parts in the cycle 6 of the Laguna Verde Unit 2 power plant; Aplicaciones del monitor de partes sueltas en el ciclo 6 de la Unidad 2 de la central Laguna Verde

    Energy Technology Data Exchange (ETDEWEB)

    Calleros, G.; Mendez, A.; Gomez, R.A. [Comision Federal de Electricidad, Central Nucleoelectrica Laguna Verde, Veracruz (Mexico); Castillo, R.; Bravo, J.M. [ININ, A.P. 18-1027, 11801 Mexico D.F. (Mexico)]. E-mail: gcm9acpp@cfe.gob.mx

    2004-07-01

    The monitor of loose parts (Loose Parts Monitoring System) installed in the Unit 2 of the Laguna Verde Central is a tool to detect strange objects or parts loose in the system of refrigeration of the reactor that could be impacted in the walls of the recirculation knots or in the internal of the reactor. In this work two applications are shown carried out with the Monitor of Loose Parts, determining the characteristics of the stable nominal conditions, those which when changing, they are used to diagnose during the Cycle 6 of the Unit 2, failures in the components of the the recirculation circuits or to identify mechanical vibrations of the recirculation knots induced by a flow of recirculation bistable associated to operative conditions of the reactor. (Author)

  15. New recommendations of the ICRP and the ALARA program of the Nuclear power plant of Laguna Verde; Nuevas recomendaciones del ICRP y el programa ALARA de la Central Laguna Verde

    Energy Technology Data Exchange (ETDEWEB)

    Padilla C, I [Comision Federal de Electricidad, Central Laguna Verde (Mexico)

    1991-07-01

    In view of the events happened in it finishes it decade, in the nuclear environment, it is necessary that any he/she practices that it involves exhibition to the radiation, real or potential, be detailed and systematically analyzed by the light of the current knowledge, capitalizing the generated experience. They think about three fundamental aspects in the campaign of radiological cultivation: 1. New methods of evaluation of equivalent dose. 2. Limit of individual dose, base of the change and control implications, and 3. Analysis philosophies and the application of the system of dose limitation. The program ALARA of the Laguna Verde Central from its installation in 1987 observes and it implements actions trending to optimize it practice of situation of potential and planned exhibition with the purpose of fulfilling the commitment settled down in the declaration of political of this program.

  16. Development of an interactive model of the Laguna Verde nuclear power plant based on the RELAP/SCDAP code; Desarrollo del modelo interactivo de la central nucleoelectrica de Laguna Verde basado en el codigo RELAP/SCDAP

    Energy Technology Data Exchange (ETDEWEB)

    Salazar C, J.H.; Ramos P, J.C.; Salazar S, E.; Chavez M, C. [LAIRN, FI-UNAM, DEPFI Campus Morelos, Jiutepec, Morelos (Mexico)]. e-mail: cchavez2@cableonline.com.mx

    2003-07-01

    The present work describes the development of an interactive model of the Nuclear power plant of Laguna Verde (CNLV) based on the RELAP/SCDAP nuclear code, and it incorporation to a classroom simulator. The functional prototype it allows to make evaluations for operational transients and postulates accidents, with capacitation purposes, training, analysis and design. It emphasizes on the methodology used to establish the inter activity. Such methodology, is based on a modular structure in the one that multiple processes can be executed in an independent way and where the generated information is stored in segments of shared memory (characteristic that allows the UNIX operating system) and sent to the different processes by means of communication routines developed in C programming language. The utility of the system is demonstrated by means of the use of interactive display graphics (mimic diagrams, pictorials and tendency graphics) for the simultaneous dynamic visualization of the variables more significant that involve to the pattern of a transitory event type (for example failure of the controller of feeding water in a BWR reactor). Near with the interactive module, it was developed a model of the reactor of the CNLV for the code of better estimation RELAP/SCDAP. Finally the evaluation of the model is described, where it is interpreted in general form the behavior of those main variables that describe the stationary state, corroborating that follow the same tendency that those reported in the FSAR (Final Safety Analysis Report) of the Laguna Verde plant. The obtained results allow to conclude that the made development was satisfactory and that it presents enormous advantages regarding the capacity and time of analysis when using tools of visualization in real time of execution. (Author)

  17. Alternativas para enfrentar las actuales exigencias del mercado de espárrago (Asparagus officinalis L. verde en Argentina. 1. Empleo de híbridos

    Directory of Open Access Journals (Sweden)

    Ana M. Castagnino

    2012-01-01

    Full Text Available A fin de determinar la productividad de híbridos de espárrago verde: 7 de origen italiano y un testigo americano (UC-157, en su segunda cosecha, se realizó un ensayo el 22/11/2006, con dos tamaños de plantines (PG y PP. Se determinó: producción fresca total (PFT y por cosecha (PFTC, producción comercial (PFN y por cosecha (PFNC, número de turiones totales (NTT, comerciales (NT, comerciales por cosecha (NTC y por planta (NTP, peso promedio por turión (PPT y distribución de calibres. Para todas las variables se destacó PG. En promedio, PFT fue de 13.287 kg/ha, PFN: 5.791 kg/ha, mientras que NT: 452.479 turiones/ha, lográndose una productividad por planta de 558 g totales y 243 g netos, y NTP de 19 turiones/planta. El PPT fue 12,95 g. Respecto de los híbridos, en PFT se destacó UC-157, seguido de Zeno, Eros, Ercole y H668 kg/ha (p < 0,05; mientras que en PFNC: UC-157 286,1; seguido por Giove 231,4; Zeno 230,7; Ercole 227,9 y Eros 224,3 kg/cosecha (p < 0,05. En NT, UC-157 produjo 186.646 turiones/ha comerciales más, respecto al promedio obtenido del conjunto de genotipos italianos, siendo el que menos turiones produjo Giove: 361.179 turiones/ha. En NTC, se destacó UC-157, seguido por Zeno y Ercole (p < 0,05. Logró mayor PPT Giove (16,7, seguido de Eros (13,1 y H668 (12,8 g/turión. En calibres el 43 % correspondió a L. Los genotipos italianos presentaron turiones de mayores calibres y menor defecto de espigado.

  18. Alternativas para enfrentar las actuales exigencias del mercado de espárrago (Asparagus officinalis L. verde en Argentina. 1. Empleo de híbridos

    Directory of Open Access Journals (Sweden)

    Ana M. Castagnino

    2012-12-01

    Full Text Available A fin de determinar la productividad de híbridos de espárrago verde: 7 de origen italiano y un testigo americano (UC-157, en su segunda cosecha, se realizó un ensayo el 22/11/2006, con dos tamaños de plantines (PG y PP. Se determinó: producción fresca total (PFT y por cosecha (PFTC, producción comercial (PFN y por cosecha (PFNC, número de turiones totales (NTT, comerciales (NT, comerciales por cosecha (NTC y por planta (NTP, peso promedio por turión (PPT y distribución de calibres. Para todas las variables se destacó PG. En promedio, PFT fue de 13.287 kg/ha, PFN: 5.791 kg/ha, mientras que NT: 452.479 turiones/ha, lográndose una productividad por planta de 558 g totales y 243 g netos, y NTP de 19 turiones/planta. El PPT fue 12,95 g. Respecto de los híbridos, en PFT se destacó UC-157, seguido de Zeno, Eros, Ercole y H668 kg/ha (p < 0,05; mientras que en PFNC: UC-157 286,1; seguido por Giove 231,4; Zeno 230,7; Ercole 227,9 y Eros 224,3 kg/cosecha (p < 0,05. En NT, UC-157 produjo 186.646 turiones/ha comerciales más, respecto al promedio obtenido del conjunto de genotipos italianos, siendo el que menos turiones produjo Giove: 361.179 turiones/ha. En NTC, se destacó UC-157, seguido por Zeno y Ercole (p < 0,05. Logró mayor PPT Giove (16,7, seguido de Eros (13,1 y H668 (12,8 g/turión. En calibres el 43 % correspondió a L. Los genotipos italianos presentaron turiones de mayores calibres y menor defecto de espigado.

  19. Justificación, producción, usos y disputas de los espacios verdes en la Argentina El Parque Independencia de Rosario durante la primera mitad del siglo XX

    Directory of Open Access Journals (Sweden)

    Diego Roldan

    2015-01-01

    Full Text Available Este artículo analiza la justificación cultural, la construcción material y los usos sociales del primer gran espacio verde de la ciudad de Rosario. Los argumentos higiénicos constituyeron la primera justificación del Parque de la Independencia. El Central Park americano y las discusiones entre Domingo F. Sarmiento y Guillermo Rawson acerca del parque 3 de Febrero de Buenos Aires incidieron en su localización y diseño. Se explican los procesos de ocupación-concesión de las superficies del paseo a corporaciones y asociaciones. Finalmente, se exploran las evidencias de difusión social del Parque, observando el pasaje de un diseño exclusivo, destinado a la distinción social de las elites locales, a otro más pluralizado y orientado a la construcción de un paseo público tendencialmente masivo. El estudio se basa en el relevamiento y la triangulación focalizada de los discursos de la prensa, los vecinos y el municipio.

  20. Analysis of the preliminary trajectory of emergency venting of the nuclear power plant of Laguna Verde using RELAP5; Analisis de la trayectoria preliminar del venteo de emergencia de la Central Laguna Verde mediante RELAP5

    Energy Technology Data Exchange (ETDEWEB)

    Cecenas F, M.; Jimenez S, R.; Ovando C, R. [Instituto Nacional de Electricidad y Energias Limpias, Reforma No. 113, Col. Palmira, 42490 Cuernavaca, Morelos (Mexico); Tijerina S, F.; Tapia M, R. N., E-mail: mcf@iie.org.mx [Comision Federal de Electricidad, Central Nucleoelectrica Laguna Verde, Subgerencia de Ingenieria, Carretera Veracruz-Medellin Km. 7.5, 94271 Veracruz (Mexico)

    2016-09-15

    For a commercial nuclear plant, the availability of a vent line to the atmosphere is an improvement to achieve the prevention and mitigation of the consequences of a severe accident. The importance of this system received greater attention after the Fukushima accident in 2011. Subsequently, in 2012 and 2013, the United States Nuclear Regulatory Commission issued documents stating that the venting must be able to dislodge 1% of the rated thermal power of the core without over pressurizing the primary container. To analyze the venting of the nuclear power plant of Laguna Verde, the line and the primary container are modeled using the thermo-hydraulic code RELAP5, simulating a release of 1% of the nominal licensed power to the container in the form of saturated steam. The vent has no problem to evacuate the energy and manages to keep the container without exceeding its design limit, and the highest percentage of thermal power that can channel the vent to the outside is approximately 3%. A sensitivity analysis increasing the diameter of the line to 14 inches allows increasing in 10% the percentage of power that can be vented to the outside without problem for the containment. (Author)

  1. Temporary storage in dry of the spent nuclear fuel in the Nuclear Power Plant of Laguna Verde; Almacenamiento temporal en seco del combustible nuclear gastado en la Central Nuclear Laguna Verde

    Energy Technology Data Exchange (ETDEWEB)

    Hernandez M, N.; Vargas A, A., E-mail: natividad.hernandez@cfe.gob.mx [Comision Federal de Electricidad, Gerencia de Centrales Nucleoelectricas, Carretera Veracruz-Medellin Km. 7.5, 94270 Dos Bocas, Veracruz (Mexico)

    2013-10-15

    To guarantee the continuity in the operation of the two nuclear reactors of the nuclear power plant of Laguna Verde (NPP-L V) is an activity of high priority of the Comision Federal de Electricidad (CFE) in Mexico. At the present time, the CFE is working in the storage project in dry of the spent fuel with the purpose of to liberate space of the pools and to have the enlarged capacity of storage of the spent fuel that is discharged of the reactors. This work presents the storage option in dry of the spent fuel, considering that the original capacity of the spent fuel pools of the NPP-L V was of 1242 spaces each one and that in 1991, through a modification of the original design, the storage capacity was increased to 3177 spaces by pool. At present, the cells occupied by unit are of 2165 (68%) for the Unit-I and 1839 (58%) for the Unit-2, however, in 2017 and 2022 the capacity to discharge the complete core will be limited by what is required of a retirement option of spent fuel assemblies to liberate spaces. (author)

  2. Experiences in the implementation of the Coaching project in the nuclear power plant of Laguna Verde (NPP-L V); Experiencias en la implementacion del proyecto Coaching en la Central Nucleoelectrica Laguna Verde (CNLV)

    Energy Technology Data Exchange (ETDEWEB)

    Mendez M, H. I., E-mail: hugo.mendez01@cfe.gob.mx [Comision Federal de Electricidad, Central Nucleoelectrica Laguna Verde, Departamento del Centro de Entrenamiento, Carretera Cardel-Nautla Km 42.5, Alto Lucero, Veracruz (Mexico)

    2012-10-15

    This document has the purpose of to share acquired experiences during the implementation of the Coaching project focused the training of supervisors and directive personnel of the nuclear power plant of Laguna Verde (NPP-L V). Derived of the improvement areas identified by the supervisor organization of the nuclear power stations WANO (World Association Nuclear of Operators) and of the auto-evaluations realized by the expert personnel of the same power station that based on external experiences carried out through the Benchmarking (comparison with other power stations) they have reflected the necessity to activate a training process in Coaching with a practical focus toward the directive and supervisor personnel in the power station. By means of the observation of the personnel's acting so much in the control rooms like in different areas, three focus areas have been identified for the training in Coaching, these are the personnel's motivation, the organizational communication so much in vertical form as horizontal and the perception of confidence lack among directive, supervisors, operators and technicians. The plan focused in the abilities training of Coaching with practical sense was development, supported with an evaluation of 360 grades as tool of competitions development through a computer application e-Coaching. The use of application and Coaching following techniques facilitated the conformation of the practical focus, same that are of continuous use starting from the training of the supervisor and directive personnel. (Author)

  3. Incidencia de las técnicas de investigación cuantitativa en el diseño de estrategias de marketing electoral. Análisis de la campaña para la presidencia del partido verde 2010.

    OpenAIRE

    Rodríguez Bustamante, Iván Darío

    2012-01-01

    La campana política del Partido Verde para la presidencia en 2010 fue una campaña con muchas particularidades. Este trabajo analiza dicha campaña y resalta las técnicas de investigación cuantitativa y la incidencia de estas en las estrategias de marketing electoral, todo lo anterior bajo el modelo de plan de marketing del profesor Francisco Javier Barranco.

  4. Evaluación del lixiviado agroecológico como acondicionador del suelo en cultivo de lechuga (Lactuca sativa variedad crespa verde

    Directory of Open Access Journals (Sweden)

    Carlos Arturo Granada Torres

    2016-06-01

    Full Text Available La producción limpia en los últimos años ha alcanzado gran interés a nivel mundial, cada día los consumidores se preocupan más por la salud y han optado por el consumo de hortalizas que estén libres de agroquímicos y que no hayan sido regadas con aguas servidas. Los productores colombianos con el fin de lograr altos rendimientos y minimización de problemas fitosanitarios se han dedicado a realizar aplicaciones e incorporación de fertilizantes de síntesis química, alterando las dosis y utilizando aguas que no son aptas para riego, obteniendo como producto final cultivos con altas trazas de agroquímicos, metales pesados y microorganismos perjudiciales para la salud humana. Metodológicamente, se evaluó en campo el lixiviado agroecológico del cultivo de lechuga tomando en cuenta las variables: peso y tamaño de la cabeza de lechuga. Se encontró que el tratamiento con microorganismos eficientes presenta mayor peso y diámetro de cabeza de lechuga. Se concluye que el cultivo presenta mejores condiciones fitosanitarias y vigorosidad

  5. Hospitales reformando al mundo verde

    Directory of Open Access Journals (Sweden)

    Sandra Milene Rojas-Criollo

    2016-12-01

    Full Text Available Introducción: factores ambientales como el cambio climático, el calentamiento global, el mal uso del suelo y del agua, la mala administración de los recursos naturales, la contaminación del aire en espacios abiertos y cerrados, el crecimiento urbano y la industrialización han ocasionado cambios en los procesos naturales del planeta; para la Organización Mundial de la Salud constituyen una barrera significativa que impide alcanzar los objetivos del milenio y del desarrollo sostenible, haciendo cada vez más grave su aplicación y generando un ambiente hostil para la vida de las personas. Metodología: investigación documental, descriptiva, con enfoque cualitativo. Se realizó búsqueda en las bases de datos Ebsco, Proquest, Scielo, Elsevier, etc., con descriptores en inglés y español. Se clasificó los artículos por similitudes, autores y definiciones; se agruparon 60 artículos en una matriz y, posteriormente, se analizaron y se integraron los conceptos para luego categorizarlos. Conclusiones: es de gran relevancia el conocimiento sobre hospitales verdes, ya que son empresas que promueven la salud pública y la reducción del impacto ambiental, además de la disminución de los índices de morbilidad y mortalidad. El personal de salud tiene un papel importante para desarrollar e implementar estas actividades en beneficio del ambiente y las personas

  6. Cabo Verde - Private Sector Development

    Data.gov (United States)

    Millennium Challenge Corporation — The objective of the Private Sector Development Project activities of the 2005-2010 Cabo Verde Compact was to support Cabo Verde's long-term economic transformation...

  7. Validation of a new version of software for monitoring the core of nuclear power plant of Laguna Verde Unit 2, at the end of Cycle 10; Validacion de una nueva version del software para monitoreo del nucleo de la Central Laguna Verde Unidad 2, al final del Ciclo 10

    Energy Technology Data Exchange (ETDEWEB)

    Hernandez, G.; Calleros, G.; Mata, F. [Comision Federal de Electricidad, Central Nucleoelectrica de Laguna Verde, Carretera Cardel-Nautla Km 42.5, Veracruz (Mexico)], e-mail: gabriel.hernandez05@cfe.gob.mx

    2009-10-15

    This work shows the differences observed in thermal limits established in the technical specifications of operation, among the new software, installed at the end of Cycle 10 of Unit 2 of nuclear power plant of Laguna Verde, and the old software that was installed from the beginning of the cycle. The methodology allowed to validate the new software during the coast down stage, before finishing the cycle, for what could be used as tool during the shutdown of Unit 2 at the end of Cycle 10. (Author)

  8. Preliminary evaluation of different green payments in the handling of the nitrogen nutrition of the tomato by means of the Isotope 15 n; Evaluacion preliminar de diferentes abonos verdes en el manejo de la nutricion nitrogenada del tomate mediante el Isotopo 15 n

    Energy Technology Data Exchange (ETDEWEB)

    Monederos, Milagros; Duennas, Graciela; Alfonso, C A; Hernandez, Marcela; Almeida, Grisel [Estacion Experimental La Renee. Instituto de Suelos, La Habana (Cuba)

    1999-07-01

    With the objective of evaluating in a preliminary way the effect of some leguminous ones (Leucaena, Canavalia, Crotalaria and Mucuna) used as green payments in the handling of the tomato nutrition its later validation under field conditions was carried out a rehearsal under controlled conditions and on a red ferralitic soils compact. I it determined the derived nitrogen of each source by means of the isotope 15N.

  9. Descomposición del follaje de Leucaena leucocephala cv. Cunningham asociada con Morus alba var. tigríada

    Directory of Open Access Journals (Sweden)

    F Ruz Súarez

    Full Text Available El presente estudio se diseñó en una parcela experimental donde se utiliza, desde hace diez años, el follaje de Leucaena leucocephala (leucaena como abono verde en el cultivo de Morus alba (morera, con el objetivo de determinar la velocidad de descomposición del follaje de la leguminosa y la relación de este proceso con algunos de los factores bióticos y abióticos presentes en el sistema. Para el estudio de la dinámica de la descomposición del follaje se utilizó el método de bolsas de hojarasca (litter bags. El follaje depositado en estas bolsas fue evaluado en seis momentos durante la etapa de estudio, que abarcó dos años. En cada fecha de recolección, a la hojarasca remanente de cada bolsa se le determinó la población de macrofauna mediante la separación manual, según la metodología del Programa de Investigación Internacional "Biología y Fertilidad del Suelo Tropical" (TSBF. La composición taxonómica de la macrofauna asociada al proceso de descomposición del follaje de leucaena estuvo constituida por cuatro Phylum, seis clases y siete órdenes. El 97% de los organismos eran detritívoros y el 3% depredadores. El tipo de bolsa no influyó en la descomposición del follaje y los factores climáticos desempeñaron un rol decisivo en este proceso.

  10. “recolección, manejo y transformación de la pollinaza en abono orgánico en el cantón durán”

    OpenAIRE

    Benites Zari, Fátima Mariana; Lozano Salcedo, Laura Alejandra; Torres Nazareno, María Antonieta

    2013-01-01

    El presente proyecto consiste en realizar un estudio de factibilidad de manejo de residuos avícolas (pollinaza) a fin de proyectar la creación de un centro de recolección, manejo y transformación en abono orgánico compost para el sector agrícola del cantón de Durán en el año 2014, debido a la gran cantidad de basura que se genera en el cantón, y la falta de gestión eficiente en la zona. La población objetivo de nuestro proyecto son las empresas e industrias del sector agrícola en ...

  11. Dinámica del nitrógeno mineral y la biota edáfica durante la descomposición de enmiendas orgánicas en un ambiente semiárido

    Directory of Open Access Journals (Sweden)

    MEYER, J.

    2012-05-01

    Full Text Available El uso de leguminosas como abonos verdes, puede proveer una cantidad importante de nitrógeno para el cultivo posterior, dependiendo de la velocidad de descomposición de los residuos. La necesidad de siembra directa (SD en los suelos frágiles no permite el enterramiento de los residuos, dificultando su descomposición y la liberación de nitrógeno inorgánico (Ni. En este trabajo se estudió la relación entre descomposición de abonos verdes de vicia con y sin adición de estiércol, la liberación de Ni y la dinámica de las poblaciones microbianas asociadas a estos procesos en el semiárido de la provincia de San Luis, Argentina. En macetas con suelo de la región se incubó suelo solo, dos dosis de vicia y dos dosis de vicia+estiércol durante un año en condiciones reales de temperatura y humedad. Bolsas conteniendo residuos de planta entera de vicia con y sin estiércol fueron ubicadas en superficie (simulando SD y a 10 cm de profundidad (simulando una labranza mínima en el suelo de las macetas. Se tomaron muestras de suelo para medir Ni (Nitratos y Amonio y grupos funcionales microbianos (amonificantes, nitrificantes y celulolíticos. Al mismo tiempo, se retiraron bolsas para medir la velocidad de descomposición del residuo. El contenido de amonio en el suelo aumentó en 6,7 (D1, 28 (D2, 7,3 (D3 y 26 (D4 mg/Kg en un año; por otra parte, el contenido de nitratos aumentó 17 (D1, 32 (D2, 23 (D3 y 41 (D4 mg/Kg. El aumento en el contenido de Ni coincidió con la evolución de las poblaciones de microorganismos amonificantes y nitrificantes. La descomposición en los residuos enterrados (p una importante cantidad de Ni en el primer año (aún en presencia del estiércol que influye en los equilibrios de mineralización inmovilización por su alta relación C/N, pero para su mayor disponibilidad es recomendable realizar una labranza minima

  12. FOTOCATÁLISIS HETEROGÉNEA CON TIO2 PARA EL TRATAMIENTO DE DESECHOS LÍQUIDOS CON PRESENCIA DEL INDICADOR VERDE DE BROMOCRESOL Heterogeneous Photocatalysis with TIO2 for Liquid Wastes Treatment with Presence of the Bromocresol Green Indicator

    Directory of Open Access Journals (Sweden)

    Carolay Yaneth Guarín Llanes

    2011-12-01

    Full Text Available La fotocatálisis heterogénea es un proceso avanzado de oxidación que se aplica en este trabajo para determinar la degradación y mineralización del indicador verde bromocresol, presente en desechos líquidos de laboratorios de análisis químico y ambiental, comúnmente generados en universidades. En el tratamiento se empleó dióxido de titanio Degussa P-25 como catalizador, un reactor tipo Batch, y radiación UV artificial con una longitud de onda de 360 nm. La degradación se cuantificó por espectrofotometría UV-visible, y la mineralización se evaluó por el parámetro de DQO. Las condiciones óptimas de tratamiento para los desechos son: 260 ppm de TiO2 y un tiempo de retención de 60 minutos, con las que se obtuvo una degradación de 84,10% y una mineralización de 82.5 %. Los resultados obtenidos muestran que el proceso de fotocatálisis heterogénea puede ser útil en el tratamiento de efluentes que tenga la presencia del indicador verde de bromocresol.Heterogeneous photocatalysis is an advanced oxidation process applied to this kind of work for determining degradation and mineralization of the Bromocresol Green indicator present in chemical and environmental analysis laboratory liquid wastes, commonly generated in universities. Degussa P-25 titanium dioxide is used in the treatment as a catalyzer, as well as a batch-type reactor, and artificial UV radiation with a 360 nm wavelength. Degradation was quantified by UV-visible spectrophotometry and mineralization was evaluated through the DQO parameter. Optimal conditions of treatment for wastes are: 260 ppm TiO2 and a retention time of 60 minutes; degradation was 84.10% and mineralization was 82.5%. Results obtained show that the heterogeneous photocatalysis process can be useful for treatment of effluents with presence of the Bromocresol Green indicator.

  13. La metamorfosis del río Turia en Valencia (1897-2016): de cauce torrencial urbano a corredor verde metropolitano

    OpenAIRE

    Portugués Mollá, Iván

    2017-01-01

    La presente tesis estudia la profunda metamorfosis del cauce y las orillas del Turia a su paso por Valencia a lo largo del siglo XX y principios del XXI. En gran medida se ha producido de forma paralela a los cambios urbanos y metropolitanos. Esta simultaneidad de interrelaciones entre río y ciudad no representa un caso aislado, sino que plasma muchas de las problemáticas que aquel binomio plantea en el ambiente mediterráneo español (escasez de recursos, prácticas abusivas, contaminación y de...

  14. Analysis of the evolution of reactivity of the event at 24/01/1995 of the BWR U-1 of Laguna Verde; Analisis de la evolucion de la reactividad del evento del 24/01/1995 del BWR U-1 de Laguna Verde

    Energy Technology Data Exchange (ETDEWEB)

    Ruiz E, J.A. [ININ, 52045 Ocoyoacac, Estado de Mexico (Mexico); Blazquez M, J. [CIEMAT, 28040 Madrid (Spain)]. e-mail: jare@nuclear.inin.mx

    2003-07-01

    In this work it is looked for, to calculate the reactivity starting from the measures of the one nuclear detection system denominated by their initials in English 'APRM' (Average Power Range Monitor) of the oscillatory event of the unit 1 of the nuclear power station of Laguna Verde happened the 24/01/1995. The reference signal consists of 3589 points taken every 0.2 seconds before the reactor operator carried out the cut of the same one. It is tried to give answer to queries like: When the event really began?, How distinguishing the stable part of the unstable? Which could be the way of predicting it?. The analysis is developed applying the call 'inverse method', with the purpose of interpreting the power response, having a mean of obtaining the information about the changes of reactivity that were given in the transitory one and to look their relationship with the actions taken by the operator. A comparison of the variation of the signal of reactivity with basic statistical variables with the purpose of trying of to find a mechanism for early detection of the instability is included. (Author)

  15. QUÍMICA VERDE: UN NUEVO RETO

    Directory of Open Access Journals (Sweden)

    Nerlis Paola Pájaro Castro

    2011-01-01

    Full Text Available En la actualidad, existe un enorme deterioro del medio ambiente que ha generado la necesidad de buscar alternativas que conduzcan a la sostenibilidad ambiental. Una de estas herramientas es la ¿química verde¿, concepto que contempla el diseño de productos y procesos que reduzcan la generación de sustancias peligrosas y maximicen la eficiencia en la utilización de recursos materiales y energéticos. El empleo de tecnologías menos contaminantes, permitirá a las empresas químicas mitigar los efectos ambientales asociados a su actividad, reduciendo el consumo de materiales e incrementando la participación de recursos renovables. Para alcanzar estas metas, se han propuesto 12 principios básicos de química verde, aplicables en diferentes campos, tales como la medicina, la agricultura, la industria química y farmacéutica. Esta revisión detalla los principios y usos principales de la química verde, y su aplicación como una filosofía de trabajo para avanzar hacia un verdadero desarrollo sostenible.

  16. Generation of the ECP database (ECP02.DAT) at the beginning of the cycle 1 of the Unit 1 of Laguna Verde; Generacion de la base ECP (ECP02.DAT) al inicio del ciclo 1 de la Unidad 1 de Laguna Verde

    Energy Technology Data Exchange (ETDEWEB)

    Perusquia C, R. [ININ, 52045 Ocoyoacac, Estado de Mexico (Mexico)

    1992-10-15

    In order to carrying out a comparison among the results provided for the Program of Estimate of the ECP Critical Position and the Shutdown/Startup produced in the Cycle 1 of the Unit 1 of Laguna Verde, it was generated the base of the ECP program, following the outlines settled down in the Procedure 'Generation of ECP Database for Laguna Verde' (IT.SN/DFR 074). Next the data sheets filled when being generated the ECP02.DAT database at the beginning of the cycle are provided. In the IT.SN/DFR 079 report 'Adjustment and Preliminary Evaluation of the Predictions of Criticity of the ECP Program with Reported Data of Cycle 1 of the Unit 1 of Laguna Verde, the results of the comparison among the estimates of the ECP program using the ECP02.DAT with the real data of the Cycle 1 of the Unit 1 of Laguna Verde are presented. (Author)

  17. Clima, cultura y disponibilidad de espacios verdes urbanos

    OpenAIRE

    Sierra, Eduardo Mario; Pérez, Silvia Patricia; Nizzero, Gustavo Raúl

    2002-01-01

    p.165-171 El rápido crecimiento urbano mundial hace que la calidad de vida dependa cada vez más de la disponibilidad de espacios verdes. Este trabajo trata de relacionar la disponibilidad de espacios verdes urbanos públicos con los factores climáticos y culturales. Las ciudades del Hemisferio Norte en países de cultura europea, donde se llevan a cabo programas de sustentabilidad muestran mayores disponibilidades lo cual refleja el impacto de los factores culturales. Desde el punto de vista...

  18. Validation of a new software version for monitoring of the core of the Unit 2 of the Laguna Verde power plant with ARTS; Validacion de una nueva version del software para monitoreo del nucleo de la Unidad 2 de la Central Laguna Verde con ARTS

    Energy Technology Data Exchange (ETDEWEB)

    Calleros, G.; Riestra, M.; Ibanez, C.; Lopez, X.; Vargas, A.; Mendez, A.; Gomez, R. [CFE, Central Nucleoelectrica de Laguna Verde, Alto Lucero, Veracruz (Mexico)]. e-mail: gcm9acpp@cfe.gob.mx

    2005-07-01

    In this work it is intended a methodology to validate a new version of the software used for monitoring the reactor core, which requires of the evaluation of the thermal limits settled down in the Operation Technical Specifications, for the Unit 2 of Laguna Verde with ARTS (improvements to the APRMs, Rod Block Monitor and Technical specifications). According to the proposed methodology, those are shown differences found in the thermal limits determined with the new versions and previous of the core monitoring software. Author)

  19. Analysis of the documents about the core envelopment of nuclear reactor at the Laguna Verde U-1 power plant; Analisis de documentos de los materiales de la envolvente del nucleo del reactor nuclear de la CLV U-1

    Energy Technology Data Exchange (ETDEWEB)

    Zamora R, L.; Medina F, A. [Instituto Nacional de Investigaciones Nucleares, A.P. 18-1027, 11801 Mexico D.F. (Mexico)

    1999-07-01

    The degradation of internal components at BWR type reactors is an important subject to consider in the performance availability of the power plant. The Wuergassen nuclear reactor license was confiscated due to the presence of cracking in the core envelopment. In consequence it is necessary carrying out a detailed study with the purpose to avoid these problems in the future. This report presents a review and analysis of documents and technical information referring to the core envelopment of a BWR/5/6 and the Laguna Verde Unit 1 nuclear reactor in Mexico. In this document are presented design data, documents about fabrication processes, and manufacturing of core envelopment. (Author)

  20. Confort térmico en espacios verdes urbanos de ambientes áridos.

    OpenAIRE

    Alejandra Kurbán; Mario Cúnsulo

    2017-01-01

    En la planificación bioclimática de las ciudades y particularmente las ubicadas en  ambientes áridos, los espacios verdes representan un potencial  higrotérmico desaprovechado como mitigadores del clima urbano. El trabajo cuantifica el confort térmico de espacios verdes urbanos (EVU) de una ciudad del centro-oeste de Argentina localizada en la Diagonal Árida Sudamericana, a partir del Índice UTCI.  Este índice se calcula a partir de mediciones climáticas en 19 EVU, realizadas en el verano del...

  1. Evaluación agronómica y nutricional del pasto estrella africana (cynodon nlemfuensis En la zona de monte verde, puntarenas, Costa Rica. II. valor nutricional

    Directory of Open Access Journals (Sweden)

    Luis Villalobos

    2014-01-01

    Full Text Available Se analizó el valor nutricional del pasto estrella africana ( Cynodon nlemfuensis a lo largo de 2 años en muestreos bimensuales, en 4 fincas comerciales de ganado lechero ubicadas en los cantones de Tilarán y Central (latitud 10°20’ N, longitud 84°50’, altitud 800 a 1200 msnm de las provincias de Guanacaste y Puntarenas, respectivamente. Las muestras se recolectaron en el aparto siguiente a ser pastoreado y se utilizó una altura de cosecha de 10 cm, para simular el pastoreo que hacen los animales. La composición nutricional promedio para los 2 años de evalua - ción fue de 23,57% MS, 20,27% PC, 2,67% EE, 10,97% cenizas, 64,21% FDN, 34,95% FDA, 4,06% lignina y 68,02% DIVMS y su contenido energético para las variables de TND, ED, EM, EN L (3X y EN G fue 61,37%; 2,71; 2,05; 1,25 y 0,78 Mcal.kg -1 de MS, respectivamente. El valor nutricional del pasto estrella africana varió a lo largo del año como resultado de la climatología de la zona de Monteverde, siendo las fincas con influencia de la vertiente del Pacífico las de menor afectación en la calidad del forraje. El pasto estrella africana mostró un contenido de PC superior a lo reportado para dicha especie y, en general, para pastos tropicales, por lo cual no es limitante para la producción láctea, y la suplementación del ganado lechero en la zona debe utilizar fuentes que permitan una utiliza - ción eficiente del N soluble a nivel ruminal. La rotación del pasto estrella cada 25 días debe ser flexible para permitir, en conjunto con programas de fertilización, optimizar la productividad de las pasturas y su persistencia.

  2. Escuela Superior de Palos Verdes

    Directory of Open Access Journals (Sweden)

    Neutra, Richard J.

    1965-02-01

    Full Text Available Before initiating the building operations for the «Palos Verdes» School, the site was divided into two large horizontal surfaces, at different levels. The lower one served to accommodate the playing fields, a car park, the physical training building, and shop and ancillary buildings. On the higher of these two surfaces, and to the West of the access road, there is a car park and also the building and plot of ground devoted to agricultural technology, as well as the literary studies and general purpose buildings. As a complement to these, there is a series of blocks, arranged in parallel rows, which house the administrative offices, the art school, the craft's school, the general classrooms, and those devoted to higher education. The fascinating aspect of this school is the outstanding penetration of the architect's mind into the essential function of the project. Its most evident merit is the sense of comradeship and harmony that permeates the whole architectural manifold.Antes de construir el complejo escolar «Palos Verdes» se comenzó por crear, en el terreno, dos grandes mesetas a niveles diferentes. Sobre el inferior se organizaron: los campos de juegos, de deportes, un aparcamiento, el edificio para educación física y los destinados a tiendas y servicios. Sobre la meseta superior, al oeste de la vía de acceso, se dispuso un aparcamiento y el edificio y campo para adiestramiento agrícola; al este, otro aparcamiento, el edificio dedicado a materias literarias, y el destinado a usos múltiples. Completan las instalaciones de la escuela una serie de bloques paralelos: la administración, la escuela de arte, las clases de trabajos manuales, las aulas de enseñanzas generales, y las de los cursos superiores. Lo fascinante de este complejo escolar es la perfecta y magistral compenetración del arquitecto con el tema proyectado, y su mayor mérito, la sensación de cordialidad y armonía con el ambiente.

  3. Modeling of the vapor cycle of Laguna Verde with the PEPSE code to conditions of thermal power licensed at present (2027 MWt); Modelado del ciclo de vapor de Laguna Verde con el codigo PEPSE a condiciones de potencia termica actualmente licenciada (2027 MWt)

    Energy Technology Data Exchange (ETDEWEB)

    Castaneda G, M. A.; Maya G, F.; Medel C, J. E.; Cardenas J, J. B.; Cruz B, H. J.; Mercado V, J. J., E-mail: miguel.castaneda01@cfe.gob.mx [Comision Federal de Electricidad, Central Nucleoelectrica Laguna Verde, Carretera Cardel-Nautla Km 42.5, Veracruz (Mexico)

    2011-11-15

    By means of the use of the performance evaluation of power system efficiencies (PEPSE) code was modeled the vapor cycle of the nuclear power station of Laguna Verde to reproduce the nuclear plant behavior to conditions of thermal power, licensed at present (2027 MWt); with the purpose of having a base line before the implementation of the project of extended power increase. The model of the gauged vapor cycle to reproduce the nuclear plant conditions makes use of the PEPSE model, design case of the vapor cycle of nuclear power station of Laguna Verde, which has as main components of the model the great equipment of the vapor cycle of Laguna Verde. The design case model makes use of information about the design requirements of each equipment for theoretically calculating the electric power of exit, besides thermodynamic conditions of the vapor cycle in different points. Starting from the design model and making use of data of the vapor cycle measured in the nuclear plant; the adjustment factors were calculated for the different equipment s of the vapor cycle, to reproduce with the PEPSE model the real vapor cycle of Laguna Verde. Once characterized the model of the vapor cycle of Laguna Verde, we can realize different sensibility studies to determine the effects macros to the vapor cycle by the variation of certain key parameters. (Author)

  4. EVALUACIÓN DEL COLOR DURANTE EL ALMACENAMIENTO DE LA PULPA DE BANANO VERDE IMPREGNADA AL VACÍO CON SOLUCIONES ANTIPARDEANTES AVALIAÇÂO DA COR NO ARMAZENAMENTO DA POLPA DE BANANA VERDE IMPREGNADA A VACUUM USANDO SOLUÇÔES PARA EVITAR O PARDEAMENTO COLOR EVALUATION DURING STORAGE OF GREEN BANANAS PULP IMPREGNATED WITH ANTIBROWNNING SOLUTIONS UNDER VACCUM

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    MISAEL CORTÉS R

    2011-12-01

    Full Text Available La impregnación al vacío es la técnica aplicada por la ingeniería de matrices, como mecanismo de incorporación de soluciones al interior de las matrices alimentarias. Se evaluó la evolución del color en la pulpa de banano verde (PBV (Musa cavendish a diferentes condiciones de almacenamiento: tiempo (0, 3, 6, 9, 12 y 15 días, temperatura (4, 20 y 30°C y empaque, con vacío (CV y sin vacío (SV; bajo tratamientos con sulfitos (500, 1000, 1500 mg/kg PBV y de la interacción antioxidante (60, 90, 120 mg/100 g PBV acidulantes (50, 150, 250 mg/100 g PBV. Los parámetros de color se evaluaron en el espacio CIEL*a*b*, en términos de luminosidad (L* y cromaticidad a* y b*. El ANOVA presentó diferencias estadísticas significativas (p A impregnaçáo a vacuo é é uma técnica usada pela engenharia de matrizes como um meio de incorporar soluçóes na matriz dos alimentos. Neste trabalho foram avaliados a evoluçáo da cor da polpa da banana verde (PBV (Musa cavendish para diferentes condiçóes de armazenamento: tempo (0, 3, 6, 9, 12 e 15 dias, temperatura (4, 20 e 30 °C e condiçóes de embalagem (com vácuo (CV e sem vacuo (SV, sob tratamento com sulfitos (500, 1000, 1500 mg/kg de PBV e interaçáo antioxidante (60, 90, 120 mg/100 g PBV e acidulantes (50, 150, 250 mg/100 g PBV. Os parâmetros de cor foram avaliados no sistema CIÉL*a*b*, em termos de luminosidade (L* e cromaticidade (a*,b*. A análise de variância (ANOVA apresentou diferenças significativas (p Vacuum impregnation is a technique applied by matrix engineering as the mechanism to incorporate the solutions to the interior of an alimentary matrix. The development of the color of the pulp of unripe Banana (PUB (Musa cavendish was evaluated in different storage conditions: Time 0, 3, 6, 9, 12, and 15 days, Temperature 4, 20, and 30°C, packed with vacuum (WV and without vacuum (NV under sulfite treatment (500, 1000, 1500 mg/kg PUB and the antioxidant interaction (60, 90, 120 mg

  5. Efecto de abono orgánico y densidad de siembra en crecimiento y producción de papa china (Colocasia esculenta L.

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    Nilsen Leonardo Lasso-Rivas

    2016-06-01

    Full Text Available La papa china es un cultivo importante para los habitantes de la región Pacífica colombiana, este cultivo posee una dinámica de producción fluctuante con rendimientos promedio por debajo de su potencial. En este trabajo se evaluó el efecto de la aplicación de abono orgánico (gallinaza y la densidad de siembra en el crecimiento y la producción de papa china en la vereda Zacarías, Buenaventura, Valle del Cauca, Colombia. El diseño experimental consistió en un arreglo de bloques completamente al azar con un arreglo de parcelas divididas, con tres densidades de siembra (100 cm x 50 cm, 60 cm x 60 cm, y 50 cm x 40cm y tres niveles de fertilización orgánica (alta 3 kg planta-1, media 2 kg planta-1, y baja 1 kg planta-1. Los resultados mostraron que la distancia de siembra es el factor que afecta de manera significativa las variables de desarrollo inicial de las plantas (altura de la planta, número de hojas y circunferencia del tallo. Para las variables de producción (longitud, circunferencia y peso del cormo se encontró que con la distancia de siembra de 100 cm x 50 cm se obtuvo el mejor desarrollo de producción de cormos, y la dosis de fertilización alta resultó en mejor desarrollo en la producción en las plantas.

  6. Study and characterization of noble metal deposits on similar rusty surfaces to those of the reactor U-1 type BWR of nuclear power station of Laguna Verde; Estudio y caracterizacion de depositos de metales nobles sobre superficies oxidadas similares a las del reactor de la Central de Laguna Verde (CNLV) U1 del tipo BWR

    Energy Technology Data Exchange (ETDEWEB)

    Flores S, V. H.

    2011-07-01

    In the present investigation work, were determined the parameters to simulate the conditions of internal oxidation reactor circulation pipes of the nuclear power plant of Laguna Verde in Veracruz. We used 304l stainless steel cylinders with two faces prepared with abrasive paper of No. 600, with the finality to obtain similar surface to the internal circulation piping nuclear reactor. Oxides was formed within an autoclave (Autoclave MEX-02 unit B), which is a device that simulates the working conditions of the nuclear reactor, but without radiation generated by the fission reaction within the reactor. The oxidation conditions were a temperature of 280 C and pressure of 8 MPa, similar conditions to the reactor operating in nuclear power plant of Laguna Verde in Veracruz, Mexico (BWR conditions), with an average conductivity of 4.58 ms / cm and 2352 ppb oxygen to simulate normal water chemistry NWC. Were obtained deposits of noble metal oxides formed on 304l stainless steel samples, in a 250 ml autoclave at a temperature range of 180 to 200 C. The elements that were used to deposit platinum-rhodium (Pt-Rh) with aqueous Na{sub 2}Pt (OH){sub 6} and Na{sub 3}Rh (NO{sub 2}){sub 6}, Silver (Ag) with an aqueous solution of AgNO{sub 3}, zirconium (Zr) with aqueous Zr O (NO{sub 3}) and ZrO{sub 2}, and zinc (Zn) in aqueous solution of Zn (NO{sub 3}){sub 2} under conditions of normal water chemistry. Also there was the oxidation of 304l stainless steel specimens in normal water chemistry with a solution of Zinc (Zn) (NWC + Zn). Oxidation of the specimens in water chemistry with a solution of zinc (Zn + NWC) was prepared in two ways: within the MEX-02 autoclave unit A in a solution of zinc and a flask at constant temperature in zinc solution. The oxides formed and deposits were characterized by scanning electron microscopy, energy dispersive X-ray analysis, elemental field analysis and X-ray diffraction. By other hand was evaluated the electrochemical behavior of the oxides

  7. Analysis of the micro-structural damages by neutronic irradiation of the steel of reactor vessels of the nuclear power plant of Laguna Verde. Characterization of the design steel; Analisis de los danos micro-estructurales por irradiacion neutronica del acero de la vasija de los reactores de la Central Nuclear de Laguna Verde. Caracterizacion del acero de diseno

    Energy Technology Data Exchange (ETDEWEB)

    Moranchel y Rodriguez, M.; Garcia B, A. [IPN, Escuela Superior de Fisica y Matematicas, Departamento de Fisica, Av. Luis Enrique Erro s/n, Unidad Profesional Adolfo Lopez Mateos, Col. Lindavista, 07738 Mexico D. F. (Mexico); Longoria G, L. C., E-mail: mmoranchel@ipn.m [ININ, Direccion de Investigacion Cientifica, Carretera Mexico-Toluca s/n, 52750 Ocoyoacac, Estado de Mexico (Mexico)

    2010-09-15

    The vessel of a nuclear reactor is one of the safety barriers more important in the design, construction and operation of the reactor. If the vessel results affected to the grade of to have fracture and/or cracks it is very probable the conclusion of their useful life in order to guarantee the nuclear safety and the radiological protection of the exposure occupational personnel, of the public and the environment avoiding the exposition to radioactive sources. The materials of the vessel of a nuclear reactor are exposed continually to the neutronic irradiation that generates the same nuclear reactor. The neutrons that impact to the vessel have the sufficient energy to penetrate certain depth in function of the energy of the incident neutron until reaching the repose or to be absorbed by some nucleus. In the course of their penetration, the neutrons interact with the nuclei, atoms, molecules and with the same crystalline nets of the vessel material producing vacuums, interstitial, precipitate and segregations among other defects that can modify the mechanical properties of the steel. The steel A533-B is the material with which is manufactured the vessel of the nuclear reactors of nuclear power plant of Laguna Verde, is an alloy that, among other components, it contains atoms of Ni that if they are segregated by the neutrons impact this would favor to the cracking of the same vessel. This work is part of an investigation to analyze the micro-structural damages of the reactor vessels of the nuclear power plant of Laguna Verde due to the neutronic irradiation which is exposed in a continuous way. We will show the characterization of the design steel of the vessel, what offers a comprehension about their chemical composition, the superficial topography and the crystalline nets of the steel A533-B. It will also allow analyze the existence of precipitates, segregates, the type of crystalline net and the distances inter-plains of the design steel of the vessel. (Author)

  8. Efficacy of marine green alga Ulva fasciata extract on the management of shrimp bacterial diseases Eficacia del extracto del alga marina verde Ulva fasciata sobre el manejo de las enfermedades bacterianas en camarones

    Directory of Open Access Journals (Sweden)

    Joseph Selvin

    2011-07-01

    Full Text Available Secondary metabolites of the green algae, Ulva fasciata, were tested to determine the efficacy of controlling shrimp bacterial pathogens. Exploratory experiments indicated that an intermediate dose (1 g kg-1 of shrimp of Ulva in the diet was highly effective at controlling bacterial pathogens of shrimp, as compared to lower (500 mg kg-1 and higher (1.5 g kg-1 doses. The pilot experiments evaluated the percent of relative protection afforded shrimps treated with Ulva diet and faced with various concentrations of bacterial pathogen. The survival of shrimps treated with Ulva diet was significant (P Metabolites secundario de algas verdes Ulva fasciata fue probado para determinar la eficacia de controlar el camarón pathogens bacterial. Las conclusiones de experimentos exploratorios indicaron que la dosis mediana (1 g kg-1 de camarón de dieta Ulva era sumamente eficaz en el control de pathogens bacterial de camarón cuando comparado al más abajo (500 mg kg-1 y más alto (1,5 g kg-1 dosis. En los experimentos pilotos, la protección de pariente de por ciento de camarones trató con la dieta Ulva y desafió con varias concentraciones de bacterial patógeno fueron evaluados. La supervivencia de camarones trató con la dieta Ulva era significativo (P < 0,01. Basado en las conclusiones presentes, podría ser deducido que U. verde fasciata puede ser una fuente excelente para desarrollar la comida potente medicinal para la dirección de enfermedad de camarón.

  9. La integración del valor de cambio de los servicios ambientales en las cuentas verdes de las áreas naturales

    OpenAIRE

    Campos Palacín, Pablo; Caparrós Gass, Alejandro

    2009-01-01

    Los bienes y servicios de mercado se miden en la contabilidad nacional por sus valores de cambio (precio por cantidad), mientras que los métodos de valoración ambiental de los servicios ambientales estiman el excedente del consumidor o las variaciones hicksianas. Esto impide una agregación directa de los valores ambientales en la contabilidad nacional. Este artículo propone una metodología que permite la agregación en condiciones homogéneas. Para el libre acceso de los visitantes re...

  10. Generation of the ECP database (ECP01.DAT) of the cycle 1 of the Unit 1 of Laguna Verde with burnt of 1377 MWD/MT; Generacion de la base ECP (ECP01.DAT) del ciclo 1 de la Unidad 1 de Laguna Verde con quemado de 1377 MWD/MT

    Energy Technology Data Exchange (ETDEWEB)

    Perusquia C, R. [ININ, 52045 Ocoyoacac, Estado de Mexico (Mexico)

    1992-10-15

    In order to carrying out a comparison among the results provided by the Program of Estimate of the ECP Critical Position and the Shutdown/Startup produced in the Cycle 1 of the Unit 1 of Laguna Verde, it was generated the base of the ECP program, following the outlines settled down in the Procedure 'Generation of ECP Database for Laguna Verde' (IT.SN/DFR-074). Next the data sheets filled when being generated the ECP01.DAT database with a burnt of 1377 MWD/MT are provided. In the report IT.SN/DFR-079 'Adjustment and Preliminary Evaluation of the Predictions of Criticity of the ECP Program with Reported Data of the Cycle 1 of the Unit 1 of Laguna Verde', the results of the comparison among those estimates of the ECP program using the ECP01.DAT database with the real data of the Cycle 1 of the Unit 1 of Laguna Verde are presented. (Author)

  11. To report the obtained results in the simulation with the FCS-11 and Presto codes of the two first operation cycles of the Laguna Verde Unit 1 reactor; Reportar los resultados obtenidos en la simulacion con los codigos FCS-11 y PRESTO de los dos primeros ciclos de operacion del reactor Laguna Verde Unidad 1

    Energy Technology Data Exchange (ETDEWEB)

    Montes T, J.L.; Moran L, J.M.; Cortes C, C.C

    1990-08-15

    The objective of this work is to establish a preliminary methodology to carry out analysis of recharges for the reactor of the Laguna Verde U-1, by means of the evaluation of the state of the reactor core in its first two operation cycles using the FCS2 and Presto-B codes. (Author)

  12. Determinación de nitrógeno inorgánico y fosfatos a distintas profundidades de suelo bajo pilas de abonos Determination of inorganic nitrogen and phosphates at different soil depths beneath manure piles

    Directory of Open Access Journals (Sweden)

    Javier Luis Ferrari

    2012-12-01

    Full Text Available En la región Andino-patagónica frecuentemente la reposición de nutrientes para diferentes cultivos se lleva a cabo mediante el uso de estiércoles mezclados con viruta, comúnmente denominados abonos. Los mismos son acumulados en pilas de 1,5-2 m de altura. Al permanecer durante un período de tiempo al aire libre puede producirse un compostaje parcial, lo cual sería beneficioso. El compostaje es un proceso biooxidativo que involucra un sustrato orgánico, una etapa termofílica que debe alcanzar los 55 °C y una etapa de maduración. Si los abonos permanecen a la intemperie los nutrientes pueden ser transportados por el agua de percolación (particularmente en los meses de invierno de mayor precipitación, perdiéndose del suelo. Con el objetivo de determinar si ocurre un movimiento de fosforó extractable en NaHCO3 0,5M (P-Ol de fósforo Olsen y nitrógeno inorgánico (Nin de nitrógeno inorgánico, amonio más nitratos bajo pilas de abono, se tomaron muestras compuestas de suelos de tres bloques a distintas profundidades en un establecimiento cercano a la localidad del Bolsón. Se estudió también la relación entre P-Ol (índice agronómico y fósforo extractable en 0,01M de CaCl2 (índice ambiental. Se tomaron las temperaturas de las pilas de abono en distintas estaciones del año. Para Nin se observó una alta dispersión en los datos y valores promedio excesivamente altos hasta 200 cm de profundidad. Los valores promedio (de tres bloques encontrados para P exceden el umbral límite de 60 mg kg-1 P-Ol solo en la primera fecha de muestreo, aunque valores puntuales por bloque llegaron a 52 mg kg-1 a una profundidad de 40-60 cm. Se encontró una regresión lineal estadísticamente significativa entre P-Ol y P-CaCl2 en suelos y un umbral entre 50/60 mg kg-1 P-Ol similar al observado en la bibliografía. Se encontraron valores muy altos para ambas variables en los abonos. Es recomendable proteger las pilas de abono de las lluvias en los

  13. Simulations of the design basis accident at conditions of power increase and the o transient of MSIV at overpressure conditions of the Laguna Verde Power Station; Simulaciones del accidente base de diseno a condiciones de aumento de potencia y del transitorio de cierre de MSIV a condiciones de sobrepresion de la Central Laguna Verde

    Energy Technology Data Exchange (ETDEWEB)

    Araiza M, E.; Nunez C, A. [Comision Nacional de Seguridad Nuclear y Salvaguardias, 03000 Mexico D.F. (Mexico)

    2001-07-01

    This document presents the analysis of the simulation of the loss of coolant accident at uprate power conditions, that is 2027 MWt (105% of the current rated power of 1931MWt). This power was reached allowing an increase in the turbine steam flow rate without changing the steam dome pressure value at its rated conditions (1020 psiaJ. There are also presented the results of the simulation of the main steam isolation va/ve transient at overpressure conditions 1065 psia and 1067 MWt), for Laguna Verde Nuclear Power Station. Both simulations were performed with the best estimate computer code TRA C BF1. The results obtained in the loss of coolant accident show that the emergency core coolant systems can recover the water level in the core before fuel temperature increases excessively, and that the peak pressure reached in the drywell is always below its design pressure. Therefore it is concluded that the integrity of the containment is not challenged during a loss of coolant accident at uprate power conditions.The analysis of the main steam isolation valve transients at overpressure conditions, and the analysis of the particular cases of the failure of one to six safety relief valves to open, show that the vessel peak pressures are below the design pressure and have no significant effect on vessel integrity. (Author)

  14. Relación entre la población microbiológica y el contenido de nutrientes en un abono orgánico fermentado AOF

    OpenAIRE

    Francisco Gracía

    2005-01-01

    La riqueza de un Abono Orgánico Fermentado, se determina por la población de microorganismos allí presentes, éstos dependen de la temperatura, el pH, la humedad, el oxígeno y alimento principalmente. Dichas condiciones cambian entre un biol, bocashi y el suelo; pues en éste las poblaciones que se encuentran no son las mismas de los AOF. En consecuencia el aporte de tales abonos es alimento para las plantas a partir de los minerales agregados en forma de sulfatos, fosfatos, carbonatos y de la ...

  15. Mercadeo verde de una empresa dorada

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    Carlos Mario Uribe-Saldarriaga

    2014-01-01

    Full Text Available El caso presenta la campaña de mercadeo realizada por Ecopetrol entre 2009 y 2012 para la introducción en Colombia del diésel ultra bajo de azufre denominado diésel limpio. Se examina la campaña desde 2 puntos de vista: el primero, el posicionamiento de Ecopetrol como una de las empresas más admiradas de Colombia, tanto por sus resultados financieros como por sus actividades en la responsabilidad social empresarial; el segundo, desde las exigencias que se hacen al mercadeo ambiental en los países desarrollados, especialmente con respecto al lavado verde, teniendo en cuenta a la vez que Ecopetrol opera en un país en vía de desarrollo donde existe un menor avance en las exigencias ambientales hechas por los grupos de interés.

  16. Mercadeo verde de una empresa dorada

    Directory of Open Access Journals (Sweden)

    Carlos Mario Uribe-Saldarriaga

    2014-01-01

    Full Text Available El caso presenta la campa ̃ na de mercadeo realizada por Ecopetrol entre 2009 y 2012 para la introducción en Colombia del diésel ultra bajo de azufre denominado diésel limpio. Se examina la campa ̃ na desde 2 puntos de vista: el primero, el posicionamiento de Ecopetrol como una de las empresas más admiradas de Colombia, tanto por sus resultados financieros como por sus actividades en la responsabilidad social empresarial; el segundo, desde las exigencias que se hacen al mercadeo ambiental en los países desarro- llados, especialmente con respecto al lavado verde, teniendo en cuenta a la vez que Ecopetrol opera en un país en vía de desarrollo donde existe un menor avance en las exigencias ambientales hechas por los grupos de interés.

  17. Talento verde: caracterización y búsqueda

    Directory of Open Access Journals (Sweden)

    María del Carmen Torres-Salazar

    2015-01-01

    Full Text Available Introducción: Los impactos del calentamiento global y el cambio climático son una preocupación en prácticamente todos los sectores de la sociedad, debido a las consecuencias que ya se perciben y que afectarán cada día más tanto a los sistemas naturales como a los creados por el hombre, generalmente de forma negativa. Para revertir estos efectos negativos y no continuar deteriorando el medio ambiente, es necesario un tipo especial de personas que sean capaces de tomar las decisiones adecuadas en los ámbitos en los que se desenvuelven. En esta investigación, estos seres humanos se denominan: “personas con talento verde”. El término talento verde no ha sido caracterizado y su uso es aun restringido. Esta investigación hace una caracterización del talento verde y propone una encuesta para detectar a las personas que cuentan con estas características. En este artículo, se reporta solo la validación de la encuesta. Es importante hacer notar que este trabajo forma parte de una investigación más amplia que busca conocer la relación entre directivos con talento verde y prácticas de cadena de suministro sustentable. Método: La caracterización del talento verde se realizó a través de la metodología de representaciones sociales, de la cual surgieron una serie de preguntas que buscan las características de talento verde en directivos de empresas y que forman parte de una encuesta de mayor cobertura que fue piloteada para su validación. La confiabilidad se midió a través del Alfa de Crombach y la validez por un Análisis Factorial. Resultados: Se encontraron nueve aspectos que caracterizan a las personas con talento verde, con las cuales se construyeron también nueve preguntas. Estas preguntas se hicieron a 25 directivos de empresas que participan en la Cámara de la Industria de la Transformación (CANACINTRA con el objetivo de validar el instrumento. El alfa de Crombrach obtenido fue del 0.948 y el análisis factorial indica

  18. RESIDUOS DE CAMARÓN SIETE BARBAS COMO ABONO ORGÁNICO EN EL CULTIVO DE TOMATE

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    Xiomara Treminio.L.

    2015-04-01

    Full Text Available La investigación se desarrolló con la finalidad de evaluar el comportamiento de plántulas de tomate (Lycopersiconesculentum mill de la variedad peto 98 bajo diferentes dosificaciones de abono orgánico elaborado a base de desechos de camarón siete barbas (Xiphopenaeuskroyeri. El experimento se llevó a cabo en la comunidad de Rocky Point, Municipio de Laguna de Perlas, en donde la naturaleza del experimento se cataloga como un arreglo unifactorial, empleándose un diseño experimental de bloques completamente al azar (BCA, con 4 tratamientos y 3 repeticiones. Las variables evaluadas correspondieron a: altura de la planta (cm, diámetro de tallo (cm y porcentaje de rendimiento (Kg, las variables se sometieron a un análisis de varianza (ANDEVA  con un 95% de confianza y prueba de rangos múltiples según el criterio de Tukey con 0.05 para la separación de medias. La mayor altura (parte aérea de las plántulas fue con el tratamiento 3 (T3 con 250 g/planta, el segundo mejor valor de altura correspondió al tratamiento 2 (T2 con 350g/planta, seguido de los tratamientos 4 (T4, con 150 g/planta y tratamiento 1 (T1 como testigo. Con respecto al diámetro se observó que en los primeros 45 días después de la siembra los T3 (250g y T3 (350,  no muestran diferencias significativas siendo los tratamientos en donde se obtuvo un mejor comportamiento, seguido de los T4 (150 g y T1 (testigo, en cuanto a rendimiento de las plántulas de tomate, el comportamiento fue similar al diámetro en donde los T2 y T3, presentan mejores rendimientos en cosecha, seguidos por los T4 y T1.SummaryThe research was developed in order to evaluate the tomato seedlings behaviour (Lycopersiconesculentum mill of the variety breastplate 98, under different dosages of compost made from seabob shrimp waste (Xiphopenaeuskroyeri. The experiment took place in the community of Rocky Point, Municipality of Pearl Lagoon, where the nature of the experiment is classified as a

  19. La aplicación de abono organo-mineral: una alternativa para la producción de maíz (Zea mays L., en suelos pardos con carbonatos.

    Directory of Open Access Journals (Sweden)

    Ignacio Corrales Garriga

    2013-04-01

    Full Text Available RESUMEN Durante tres años se condujo un experimento en áreas del Instituto de Investigaciones de Viandas Tropicales (INIVIT de Camagüey, empleando diferentes abonos organo-mineral, con el objetivo de conocer su influencia en el rendimiento del maíz (Zea maiz, L, sobre un suelo Pardo Sialítico Mullido Carbonatado de pH ligeramente ácido, bajo contenido de P2O5 y medio de K2O y materia orgánica. Para las mezclas organo-mineral se emplearon como abonos orgánicos el estiércol vacuno y la cachaza y como fertilizantes minerales, el superfosfato triple y el cloruro de potasio. El organo-mineral se aplicó en el momento de la siembra a una dosis de 745 kg ha1 de acuerdo a cada tratamiento, los que fueron replicados 4 veces en un diseño de bloques al azar. Se midió el rendimiento y sus componentes y se tomaron muestras de suelo para conocer la variación de sus propiedades. Los datos fueron evaluados por un análisis de varianza de clasificación doble y se aplicó la prueba de rango múltiple de Duncan para un nivel de significación del 5 %. Los resultados muestran que el empleo de los abonos organo-minerales favorece el rendimiento, reducen los fertilizantes químicos a emplear y mejoran las propiedades del suelo. ORGANO-MINERAL FERTILIZER APPLICATION: AN ALTERNATIVE FOR PRODUCTION OF CORN (Zea mays L., IN SIALYTIC BROWN CARBONATED SOIL. ABSTRACT. For three years, an experiment was conducted in areas of the Research Institute (INIVIT Camaguey , using different organo- mineral fertilizers , in order to study its influence on the performance of maize ( Zea mays , L on a Fluffy Sialytic Brown Carbonated soil slightly acidic pH , low P2O5 and K2O and medium organic matter. For organo- mineral mixtures were used as organic fertilizers and cow manure and cachaza and mineral fertilizer, triple superphosphate and potassium chloride. The organo- mineral was applied at the time of planting at a dose of 745 kg ha1 according to each treatment, which

  20. Red continua de espacios públicos verdes a escala municipal: el caso de Madrid

    OpenAIRE

    Casado Postigo, Pablo

    2015-01-01

    La ubicación marginal y el aislamiento de los Parques Urbanos implican infrautilización y deterioro de los mismos. Su interconexión mediante una red verde peatonal con limitaciones al tráfico rodado, supone una puesta en valor de todo el sistema de espacios libres y zonas verdes de la ciudad y un importante incentivo para desviar determinados flujos rodados a otras vías cercanas, rescatando así, espacios urbanos a favor del peatón. Esta conexión ayuda a minimizar la fragmentación del espacio ...

  1. Palo Verde College Facts, 2001.

    Science.gov (United States)

    Palo Verde Coll., Blythe, CA.

    This is a 2001 report on Palo Verde College (PVC) (California) student demographics, enrollment status, citizenship, educational goals, and academic persistence. Student data were collected and analyzed to meet accrediting standards, improve institutional effectiveness, and fulfill the local district's mission. The report discusses enrollment…

  2. Efecto de tres abonos orgánicos: lombricomposta, bocashi y tierra de corral en un cultivo intercalado de jitomate (Solanum lycopersicon) y pepino (Cucumis sativus) bajo invernadero en el ejido El Limón, Tepalcingo, Morelos, México

    OpenAIRE

    Hernández Tapia, Alejandro; Ramírez-Rivero,Libia Aidé; Corlay-Chee, Langen; Cruz Rodríguez, Juan Antonio

    2015-01-01

    Se evaluó una intercalación de jitomate y pepino bajo condiciones de invernadero, con un diseño de bloques completos al azar, con nueve tratamientos de abono en cuatro repeticiones (Bocashi, lombricomposta y tierra de corral con tres niveles de dosificación 0.5, 1.0 y 1.5 kg/m2).Se evaluó rendimiento y,en el caso del jitomate número de frutos dañados. Se empleó un análisis de varianza (ANOVA) y pruebas de comparación de medias (Tukey α=.05). En el caso del pepino, con el tratamiento lombri...

  3. ¿Qué tan verde es tu mercado?

    Directory of Open Access Journals (Sweden)

    Wilmar R. Olaya-González

    2011-01-01

    Full Text Available El mercado de lo verde y lo ecológico es una tendencia indiscutible en nuestro mundo globalizado, que busca de alguna manera resarcir el daño infringido sobre el medio ambiente. Más allá de simple altruismo, la ecología se ha convertido en una moda, de la cual unos y otros toman ventaja a su mejor acomodo, haciendo del mercado de productos y servicios su tribuna; eco-diseño, planes de responsabilidad social y ambiental, campañas por el reciclaje y consumo de productos "más amigables" con el medio ambiente hacen parte del panorama que se intenta describir en esta reseña. Por medio de un estudio de caso, se hará énfasis en cómo la comunicación asume un papel crucial en la verdadera apropiación del concepto de "consumidor verde" y "consumidor responsable", de manera que la propuesta transversal de las tic se convierta en una herramienta no solo tecnológica, sino también de empoderamiento del papel que la sociedad puede representar en el cuidado de los recursos naturales.

  4. Respuestas a las cuestiones planteadas por el Libro Verde sobre el Derecho a la Reagrupación Familiar: Revisión de la Directiva 2003/86/CE del Consejo, de 22 de septiembre de 2003, sobre el derecho a la reagrupación familiar de nacionales de terceros países residentes en la Unión Europea

    Directory of Open Access Journals (Sweden)

    Soraya Espino García

    2013-12-01

    Full Text Available El reciente Libro Verde sobre reagrupación familiar, se centra en una serie de preguntas derivadas todas ellas de la aplicación de la Directiva 2003/86/CE, y en el que se invitaba a todas las partes interesadas a responder hasta el pasado 1 de marzo de 2012 a cualquiera de las 14 cuestiones planteadas en relación a la reunificación familiar de los nacionales de terceros países que residen legalmente en la Unión Europea. Con esta iniciativa, se ha impulsado un debate público sobre el tema de la reunificación familiar con el objetivo de determinar si es necesario o no, realizar un seguimiento más concreto de esta política. En este contexto, el Libro Verde hoy adoptado pretende recoger las opiniones de las partes interesadas y de los Estados miembros sobre una serie de interrogantes surgidos en este ámbito de tal forma que sus aportaciones supongan un conocimiento más exacto de la realidad de la reagrupación familiar en sus respectivos países, además de poder alcanzar una mejora con la que se pueda garantizar una aplicación mucho más eficaz del régimen de reagrupación familiar a escala de la Unión Europea. No obstante, cualquier posible método de seguimiento ha de ser objeto de una evaluación en profundidad de su impacto sobre los derechos fundamentales, en particular el respeto de la vida privada y familiar, el derecho a contraer matrimonio, los derechos del menor y el principio de no discriminación

  5. Verde urbano e processi ambientali: per una progettazione di paesaggio multifunzionale

    Directory of Open Access Journals (Sweden)

    Raffaele Pelorosso

    2013-04-01

    Full Text Available L’impermeabilizzazione delle superfici determina un’alterazione del sistema idrologico, con un incremento dei volumi e dei picchi dei deflussi delle acque meteoriche. Il fenomeno è destinato a progredire, sia per il contributo che vi deriva dalla costante crescita delle superfici urbanizzate (urban sprawl, sia per i cambiamenti climatici in atto, che accentuano la frequenza delle piogge critiche. Una serie di misure e tecniche (Best Management Practices, BMPs sono state sviluppate per la gestione sostenibile delle acque meteoriche urbane. Alcune  BMPs (es: verde pensile, bacini di detenzione/ritenzione, zone umide possono svolgere inoltre una funzione ecologica (divenendo habitat per specie animali e vegetali, di termoregolazione, estetica e di promozione del capitale sociale. È quindi necessario sperimentare metodologie di progettazione e gestione del verde urbano e periurbano, la cui multifunzionalità consente di perseguire la strada della sostenibilità ambientale. Su tale traccia, questo lavoro presenta un percorso metodologico orientato a valutare alcune strategie integrate di controllo dei deflussi urbani, attraverso l’aumento della permeabilità di alcune parti sensibili di città. Il verde, quindi, non è visto come semplice infrastruttura necessaria a soddisfare generici standard urbanistici, ma ne sono analizzate le funzionalità, in questa prima fase di carattere idrologico, ma che, in prospettiva, con la stessa armatura verde, esso può assumere un ruolo ecologico, sociale, di mitigazione del clima e di emissione di gas clima-alteranti.

  6. Simulation of the steady state of the Laguna Verde Nuclear power station at full power (1931 MWt and 2027 Mwt) with the SCDAPSIM code; Simulacion del estado estacionario de la Central Nucleoelectrica de Laguna Verde a plena potencia (1931 MWt y 2027 MWt) con el codigo SCDAPSIM

    Energy Technology Data Exchange (ETDEWEB)

    Amador G, R.; Nunez C, A.; Mateos, E. del A. [Comision Nacional de Seguridad Nuclear y Salvaguardias, Mexico D.F. (Mexico)

    2001-07-01

    This document describes two models developed for the Laguna Verde Nuclear Power Station (LVNPP) using SCDAPSIM computer code. These models represent the LVNPP in normal operation with a nominal power of 1931 MWt and power uprate conditions of 2027 MWt. The steady states obtained by means of these models comply with the criteria established by the ANSI/ANS-3.5-1985 for nuclear power plant simulators. This criteria has been applied to the models of the LVNPP developed by CNSNS in want of some international accepted criteria for ''Best Estimation'' computer codes. These models will be the bases to carry out studies of validation of the own models as well as the analysis of diverse scenarios that evolve to a severe accident. (Author)

  7. Secuencia didáctica en química verde

    OpenAIRE

    Cortés Rodríguez, Adriana Janneth

    2017-01-01

    Esta propuesta presenta los resultados del diseño e implementación de una secuencia didáctica cuya finalidad es adaptar los principios de la Química Verde (QV) en el ámbito escolar, a través de actividades específicas que se enmarcan dentro del diseño del Protocolo Verde o Practica Amigable para el Medio Ambiente. La metodología de investigación – acción desarrollada permitió la reflexión de los estudiantes sobre los principios de la QV en relación con la identificación del cambio de color, e...

  8. Distribution patterns of the barnacle, Chelonibia testudinaria, on juvenile green turtles (Chelonia mydas in Bahia Magdalena, Mexico Patrones de distribución del balano, Chelonibia testudinaria, en tortugas verdes (Chelonia mydas juveniles en bahía Magdalena, México

    Directory of Open Access Journals (Sweden)

    Eduardo Nájera-Hillman

    2012-12-01

    . testudinaria ya que su presencia fue frecuente y su abundancia fue similar a la de otras poblaciones. C. testudinaria mostró una distribución agregada que puede facilitar su reproducción durante el verano. La abundancia de C. testudinaria no estuvo afectada por el tamaño de la tortuga o la temporada del año, mientras que se sugiere que la posición de adherencia estuvo afectada por el flujo del agua sobre el caparazón y la fricción del plastrón contra el fondo del mar. Las tortugas más saludables mostraron una disminución en la abundancia de balanos, por lo tanto sugerimos que C. testudinaria puede ser un indicador de la salud de las tortugas verdes juveniles.

  9. Simulation of the turbine trip of Unit 1 of the Laguna Verde nuclear power plant using the code Simulate-3K; Simulacion del disparo de turbina de la Unidad 1 de la central nuclear Laguna Verde empleando el codigo Simulate-3K

    Energy Technology Data Exchange (ETDEWEB)

    Alegria A, A. [Comision Nacional de Seguridad Nuclear y Salvaguardias, Dr. Barragan 779, Col. Narvarte, 03020 Ciudad de Mexico (Mexico); Filio L, C. [IPN, Escuela Superior de Fisica y Matematicas, Av. IPN s/n, 07738 Ciudad de Mexico (Mexico); Ortiz V, J., E-mail: aalegria@cnsns.gob.mx [ININ, Carretera Mexico-Toluca s/n, 52750 Ocoyoacac, Estado de Mexico (Mexico)

    2017-09-15

    In order to compare the results obtained from the model developed in the Comision Nacional de Seguridad Nuclear y Salvaguardias (CNSNS) with the code Simulate-3K (S3K) with respect to those reported by the process computer of the Central (SIIP), the simulation of the turbine trip transient was carried out, caused by the firing of the main generator, the low differential pressure of oil of its seals and the automatic Scram of Unit 1 of the Laguna Verde nuclear power plant, at 87% of power nominal during the operation cycle 16. Since the reactor was brought to a safe stop due to Scram, was enough to simulate 20 seconds to observe the maximum increase in pressure with S3K. In this work, the following parameters are shown and compared: the neutron flux, the thermal power, the pressure in the dome, the flow at the entrance to the core, the steam flow that leaves the vessel and the minimal critical power ratio (MCPR). The neutron flux of the average power range monitors of the nuclear power plant was compared with the S3K detectors model. Finally, the MCPR was calculated with a different correlation to that of the fuel supplier and its deviation from its safety limit was determined. In conclusion, the results obtained show the current state of the model for the simulation of reactivity transients and the opportunity areas to consolidate this tool in support of the process of licensing refueling in the CNSNS. (Author)

  10. Quality studies of the energy in the electric net of the gathering warehouse of reusable parts and contaminate oils of the nuclear power plant Laguna Verde; Estudios de calidad de la energia en la red electrica del almacen de acopio de partes reusables y aceites contaminados (CCAC) de la Central Nuclear Laguna Verde

    Energy Technology Data Exchange (ETDEWEB)

    Tijerina S, F.; Vargas A, A.; Cardenas J, J., E-mail: francisco.tijerina@cfe.gob.mx [Comision Federal de Electricidad, Central Nucleoelectrica Laguna Verde, Subgerencia de Ingenieria, Carretera Cardel-Nautla Km 42.5, Veracruz (Mexico)

    2012-10-15

    In the industry exist the high costs by faults of electronic and electric equipment s, due to during the design process, installation, tests and operation of these equipment s, is not had appropriate detection equipment to carry out quality studies of the energy. These studies give an important support to know that occurs in an electric net, the cause of the anomalous behavior of the equipment s and this way to avoid the expensive faults carrying out necessary engineering adaptations in an electric net. The elements of the electricity that are determined are the tension, current and frequency that are inside acceptable operational parameters that facilitate the operation and constant operation of the equipment s, free of interruptions and failures. The application of the quality studies of the energy is growing little by little in Mexico for the problems solution in the equipment s. This field is also developing new techniques and technologies integrated in the equipment s for its monitoring detection and protection. The present work offers the results of the first Quality Study of the Energy in the nuclear power plant of Laguna Verde to solve the problem in the gathering warehouse of reusable parts and contaminate oils, in which the failure of the two radiation monitors of the gassy effluent of ventilation HVAC of the warehouse took place. (Author)

  11. Range of the radiation monitor for the rigid vent of primary containment during normal and emergency operation for a BWR-5 in Laguna Verde; Rango del monitor de radiacion para el venteo rigido de la contencion primaria durante operacion normal y emergencia para un reactor BWR-5 en Laguna Verde

    Energy Technology Data Exchange (ETDEWEB)

    Tijerina S, F.; Pozos S, A. M.; Cabrera U, S.; Mata A, J. A.; Sandoval V, S.; Ovando C, R.; Vargas A, A.; Gallardo R, I.; Cruz G, M.; Amador C, C., E-mail: francisco.tijerina@cfe.gob.mx [Comision Federal de Electricidad, Central Nucleoelectrica Laguna Verde, Subgerencia de Ingenieria, Km 44.5 Carretera Cardel-Nautla, 91476 Laguna Verde, Alto Lucero, Veracruz (Mexico)

    2014-10-15

    The earthquake followed by a tsunami, happened in March, 2011 in the coasts of oriental Japan, caused damages in the nuclear power plants 1 at 4 of Fukushima Daiichi leading to damage of the fuel in three of the reactors and to the radiation liberation to the exterior. As consequence of those events, the regulations requires that the power plants with Primary Containment type Mark I and II evaluate to have a system of rigid vent with a monitoring equipment of radiation effluents. The present work covers the rigid vent of diameter 12 of the Primary Containment, type Mark-II, of nuclear power plant of Laguna Verde in conditions of severe accident and normal operation, low regime of Extended Power Up rate (EPU - 2317 MWt), using the codes MAAP3B, MICROSHILED 5.05 and the Bardach Black Boxes methodology. As a result the measurement range of the radiation monitor that is required for monitoring the gassy liberation to the atmosphere was determined. The conclusion is that the superior limit of the range of the radiation meter during a Severe Accident is of 8.55 E + 05 R/h (8.55 E + 08 m R/h) and the superior limit in normal operation of 1.412 E-11 at 2.540 E-7 R/h (1.412 E-14 at 2.540 E-10 m R/h). (Author)

  12. Innovation, creative ideas to attend the challenges of the Central Laguna Verde for the period 2011-2015 due to new 100% of power; Innovacion, ideas creativas para atender los retos y desafios del periodo de la Central Laguna Verde en 2011-2015 por el nuevo 100% de potencia

    Energy Technology Data Exchange (ETDEWEB)

    Rivera C, A., E-mail: arr99999@cfe.gob.mx [Comision Federal de Electricidad, Central Nucleoelectrica Laguna Verde, Carretera Cardel-Nautla Km 42.5, Veracruz (Mexico)

    2011-11-15

    For the nuclear power plant of Laguna Verde (CLV) is an opportunity to present to the nuclear community in Mexico the improvement areas and challenges for the period 2011-2015, now that has been concluded the phase of starting tests of the CLV modernization, with an increment of power of 20% that represents a new generation of electrical power of 815 M We per hour in the 2 Units, with these new challenges the strategic planning 2011 at 2015 take relevance to give guide to the innovation, with new ideas of improvement to the processes, human resources and leadership, with the purpose of maintaining reliable all the equipment s and process systems by means of the use of strengths, opportunities, vulnerabilities and threats analysis, in order to make strategies that aid to generate competitive advantages for the production of electric power in Mexico, using privileged information that contain the database of the improvement systems, like are the programs of corrective action, of human acting, of external operational experience, of auto-evaluation and of benchmarking that is the referential comparison with other similar power stations. At present, in the general management of operation exist the training by coaching to grow in the formation of the half commands and line supervisors, reinforcing the wanted behaviors, the abilities of the technicians, and the orientation in deficient performances in the search of the operational excellence. (Author)

  13. Confort térmico en espacios verdes urbanos de ambientes áridos.

    Directory of Open Access Journals (Sweden)

    Alejandra Kurbán

    2017-06-01

    Full Text Available En la planificación bioclimática de las ciudades y particularmente las ubicadas en  ambientes áridos, los espacios verdes representan un potencial  higrotérmico desaprovechado como mitigadores del clima urbano. El trabajo cuantifica el confort térmico de espacios verdes urbanos (EVU de una ciudad del centro-oeste de Argentina localizada en la Diagonal Árida Sudamericana, a partir del Índice UTCI.  Este índice se calcula a partir de mediciones climáticas en 19 EVU, realizadas en el verano del año 2014. El valor de dicho índice en cada EVU se referencia con el calculado para su entorno urbano. El porcentaje de diferencia entre ellos permite agrupar el desempeño bioclimático de los EVU en cinco categorías en función de su divergencia con las condiciones climáticas generales de la ciudad. Los resultados permiten individualizar los parámetros arbóreos mínimos que deben poseer los EVU, como objetivo de una planificación bioclimática del verde urbano en ciudades de ambientes áridos.

  14. Closure simulation of the MSIV of Unit 1 of the Laguna Verde nuclear power plant using the Simulate 3K code; Simulacion del cierre de las MSIV de la Unidad 1 de la central nuclear Laguna Verde empleando el codigo Simulate-3K

    Energy Technology Data Exchange (ETDEWEB)

    Alegria A, A., E-mail: aalegria@cnsns.gob.mx [Comision Nacional de Seguridad Nuclear y Salvaguardias, Dr. Barragan 779, Col. Narvarte, 03020 Ciudad de Mexico (Mexico)

    2015-09-15

    In this paper the simulation of closure transient of all main steam isolation valves (MSIV) was performed with the Simulate-3K (S-3K) code for the Unit 1 of the Laguna Verde nuclear power plant (NPP-LV), which operates to thermal power of 2317 MWt, corresponding to the cycle 15 of operation. The set points for the performance of systems correspond to those set out in transient analysis: 3 seconds for the closure of all MSIV; the start of Scram when 121% of the neutron flux is reached, respect from baseline before the transient; the opening by peer of safety relief valves (SRV) in relief mode when the set point of the pressure is reached, the shoot of the feedwater flow seconds after the start of closing of the MSIV and the shoot of the recirculation water pumps when the pressure is reached in the dome of 1048 psig. The simulation time was of 57 seconds, with the top 50 to reach the steady state, from which the closure of all MSIV starts. In this paper the behavior of the pressure in the dome are analyzed, thermal power, neutron flux, the collapsed water level, the flow at the entrance of core, the steam flow coming out of vessel and the flow through of the SRV; the fuel temperature, the minimal critical power ratio, the readings in the instrumentation systems and reactivities. Instrumentation systems were implemented to analyze the neutron flux, these consist of 96 local power range monitors (LPRM) located in different radial and axial positions of the core and 4 channels of average power range monitors, which grouped at 24 LPRM each one. LPRM response to the change of neutron flux in the center of the core, at different axial positions is also shown. Finally, the results show that the safety limit MCPR is not exceeded. (Author)

  15. El anillo verde de Vitoria-Gasteiz

    Directory of Open Access Journals (Sweden)

    Marañón, Blanca

    2001-10-01

    de la periferia de la ciudad, donde coexistían zonas de alto valor ecológico sometidas a agresiones de todo tipo, con otros espacios degradados y marginales, fruto de la expansión urbana e industrial. La restauración ecológico-paisajística de estos espacios y su acondicionamiento para el uso público han permitido configurar un "anillo verde multifunción" en torno a la ciudad que está proporcionando importantes beneficios ambientales, sociales y económicos. El anillo verde ha jugado un papel importante en la integración naturaleza-ciudad, equilibrando la oferta de zonas verdes entre todos los barrios y favoreciendo la conexión entre los espacios verdes urbanos y los espacios naturales del entorno agrícola. Ha propiciado, asimismo, el desarrollo de nuevas actividades relacionadas con el ocio y el esparcimiento y con la formación, educación y sensibilización ambiental; actividades que, por un lado, están suponiendo un revulsivo para el sector empresarial ambiental y la integración socio-laboral de determinados colectivos sociales y, por otro, contribuyen a la conservación de estos espacios, al convertirse los usuarios en sus mayores defensores y guardianes. La utilización de algunos de estos espacios como superficies de laminación de agua en épocas de avenidas para solventar problemas de inundación en las zonas industriales es otro ejemplo del valor añadido obtenido al plantear soluciones integrales. Los excelentes resultados obtenidos tras nueve años de trabajo demuestran la viabilidad técnica y económica y la rentabilidad social de este proyecto, que representa una prueba evidente de la decidida voluntad municipal de avanzar hacia un modelo de ciudad sostenible en armonía con el medio natural que la rodea.

  16. Burrowing Owl - Palo Verde Valley [ds197

    Data.gov (United States)

    California Natural Resource Agency — These burrowing owl observations were collected during the spring and early summer of 1976 in the Palo Verde Valley, eastern Riverside County, California. This is an...

  17. Laguna Verde - A photo story

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1980-04-15

    Safety is one of the main factors in the construction and operation of a modern nuclear power plant. There are many barriers between the fission products produced in the fuel elements of the core, and the environment: the cladding of the fuel pins which are enclosed in the reactor core, the pressure vessel containing the core and which in turn is enclosed in the reactor containment, all this being located in a low-pressure secondary containment or reactor building. Despite these precautions, nuclear safety is still a widely-discussed issue. The important fact remains, however, that there has not been a single radiation-induced fatality or serious injury at any civilian nuclear power plant during 20 years of nuclear power generation. This includes the accident that occurred in March 1979 at the Three Mile Island nuclear plant in the USA. A substantial component contributing to safety in a nuclear power plant is the containment. The following photos of Laguna Verde, Mexico's first nuclear power station being constructed at Alta Lucero in Vera Cruz, give an impression of how strong this concrete and steel containment actually is. Laguna Verde consists of two 600 MWe units and the plant is scheduled for commercial operation in 1982. Construction began in 1974. Both units are boiling-water reactors. The photos show, in general, the construction of the primary containment for the reactors (the dry wells). The dry well contains the reactor itself and has two layers: the leak-tight steel liner and the heavy concrete building. The purpose of the primary containment is to retain steam and gases that might escape in an emergency and to direct these through relief tubes to a water pond for cooling. Surrounding this primary containment will be a reactor building which serves as a secondary low-pressure containment, able to operate at pressures up to 0.2 atmospheres.

  18. Palo Verde nuclear dynamic analysis (PANDA)

    International Nuclear Information System (INIS)

    Girjashankar, P.V.; Secker, P.A. Jr.; LeClair, S.J.; Mendoza, J.; Webb, J.R.

    1988-01-01

    Arizona Nuclear Power Project (ANPP) has initiated the development of a large scale dynamic analysis computer program for the Palo Verde Nuclear Generating Station (PVNGS). This paper presents the decision processes and preliminary development activities that have been pursued related to the code development. The PANDA (Palo Verde Nuclear Dynamic Analysis) code will be used for a variety of applications as described in this paper

  19. ENOTURISMO Y DESARROLLO ECONÓMICO. UN ESTUDIO DE CASO EN CABO VERDE (ÁFRICA)

    OpenAIRE

    Ana Mª Castillo Canalejo; Tomás López Guzmán

    2011-01-01

    El turismo del vino se está desarrollando significativamente en algunas regiones vitivinícolas del mundo satisfaciendo una demanda de viajeros que buscan unos destinos que supongan la experimentación de nuevas sensaciones que tengan que ver con la cultura local. En esta línea, el objetivo de este artículo es explorar las posibilidades del enoturismo en la isla de Fogo (Cabo Verde). Para alcanzar dicho objetivo se analizan los principales recursos turísticos de esta zona para fomentar este tip...

  20. Diseño, construcción y operación de un mezclador para producir abono orgánico a partir de los residuos orgánicos

    OpenAIRE

    Caiza Martillo, Raúl Wilfrido

    2013-01-01

    Uno de los principales problemas actuales de la agricultura es el elevado costo que presentan los insumos tales como abonos químicos, fertilizantes sintéticos, herbicidas y pesticidas, que además causan graves problemas de contaminación ambiental, degradación de los suelos, deterioro de la salud humana tanto de los agricultores así como también de todos quienes consumimos de estos productos, la falta de conocimiento de nuestros campesinos en la producción de un abono orgánico totalmente homog...

  1. COMUNICACION PRELIMINAR SOBRE EL EFECTO DEL MICROELEMENTO MOLIBDENO EN EL RINDE DEL ALGODONERO

    Directory of Open Access Journals (Sweden)

    Isidoro Mogilner

    1960-01-01

    Full Text Available Se trataron semillas de algodonero de la variedad Stoneville 2B, con soluciones de distinta concentración de (NH42 Mo O4, durante 24 horas, a dos temperaturas distintas. Tratadas las semillas se sembraron dos ensayos, cada uno con las 8 variantes y utilizando dos testigos (H20 destilada para la variante 1; Y H20 corriente para la variante 2.Los dos ensayos ocuparon un terreno contiguo y similar, cuyo suelo es arcilloso, relativamente pobre en Ca, muy pobre en P, y de una reacción ácida (pH de 5,09 a 5,85. Para los dos ensayos se utilizó la misma disposición experimental, con la diferencia de que el segundo ensayo se sembró con previo abonado de una mezcla comercial (Amino-Phos-Ko, 10-20-20; la siembra se efectuó en el mismo día. Se alcanzó a realizar tres cosechas. Los resultados obtenidos en el segundo ensayo (con abono no fueron tan válidos como en el primero (sin abono, porque no pudimos saber si el abono agregado contenía como impurezas el Mo, presente en muchas fuentes del fósforo utilizados en la preparación de abonos (ej.: fosforita. Del primer ensayo, en suelo no abonado, se extrajeron como conclusiones: 1 que en tipos de suelos como en el que se realizaron los ensayos, el suministro de dosis adecuadas de molibdeno incide satisfactoriamente sobre un aumento de los rindes del algodonero, tanto como de 300 Kgfha; 2 que aunque no podemos decir exactamente cual es la dosis óptima para el tratamiento de la semilla antes de la siembra, parecería que se encuentra entre 0,05 % y 0,02 % de molibdato de amonio; 3 que la temperatura a la que se realice el tratamiento de la semila, parece tener importancia; y en los ensayos realizados fueron superiores los rindes con el tratamiento a 30°C, que a 21°C.

  2. EVALUACIÓN DE LA CALIDAD DE UN ABONO LÍQUIDO PRODUCIDO VÍA FERMENTACIÓN HOMOLÁCTICA DE HECES DE ALPACA

    OpenAIRE

    Quiñones Ramirez, Henrry; Investigador Asociado. Tesis de Maestría en Producción Animal.; Trejo Cadillo, Wilder; Departamento de Producción Animal de la Facultad de Zootecnia, Universidad Nacional Agraria La Molina. Av. La Molina s/n. La Molina, Lima. Apartado Postal 12-056, Lima 12, Perú.; Juscamaita Morales, Juan; Departamento Académico de Biología de la Facultad de Ciencias, Universidad Nacional Agraria La Molina. Av. La Molina s/n. La Molina, Lima. Apartado Postal 12-056, Lima 12, Perú.

    2016-01-01

    El alto costo económico y ambiental por el uso de fertilizantes sintéticos conlleva a la búsqueda de alternativas más viables y sostenibles (Pindi, 2012). En este estudio se tuvo como objetivo evaluar la calidad nutricional, carga bacteriana enteropatógena y la fitotoxicidad de un abono líquido producido a partir de heces de alpaca, mediante el proceso biotecnológico de fermentación homoláctica. Veinticinco tratamientos por triplicado fueron preparados con heces de alpaca, lactosuero, melaza ...

  3. 36 CFR 7.39 - Mesa Verde National Park.

    Science.gov (United States)

    2010-07-01

    ... 36 Parks, Forests, and Public Property 1 2010-07-01 2010-07-01 false Mesa Verde National Park. 7... SPECIAL REGULATIONS, AREAS OF THE NATIONAL PARK SYSTEM § 7.39 Mesa Verde National Park. (a) Visiting of... the admission of commercial automobiles and buses to Mesa Verde National Park, contained in § 5.4 of...

  4. UTILIZACIÓN DEL SUBPRODUCTO DE FIQUE: LICOR VERDE, COMO CONTROLADOR DE PLAGAS EN EL CULTIVO DE REPOLLO (Brassica oleracea DO FIQUE SUBPRODUTOS UTILIZAÇÃO: LICOR VERDE COMO UM CONTROLADOR DE PRAGAS NA CULTURA DO REPOLHO (Brassica oleracea FIQUE SUBPRODUCT UTILIZATION: GREEN LIQUOR AS A PEST CONTROL IN THE CULTURE OFCABBAGE (Brassica oleracea

    Directory of Open Access Journals (Sweden)

    JHON F. IMBACHÍ-HOYOS

    2012-06-01

    Full Text Available En el vivero forestal 'La Florida' de la Corporación Autónoma Regional del Cauca CRC, se evaluó el efecto del extracto de fique (Furcraea sp como controlador de plagas en el cultivo de repollo (Brassica oleracea. Se utilizaron cuatro tratamientos (blanco, solución extracto de fique al 30% v/v, 20% v/v, 10% v/v. Las mediciones se hicieron durante seis semanas para vigor, altura, diámetro, daño por plagas y daño por enfermedades. La aplicación fue de una vez durante las tres primeras semanas; y las tres siguientes la aplicación fue de dos por semana. Los resultados se analizaron utilizando el paquete estadístico SPSS 11.5, se realizó una ANOVA con un nivel de confianza del 95% (p = 0,05 y una prueba de Tuckey. El análisis muestra que la aplicación del extracto dos veces por semana (extracto de fique al 30% v/v, presentó el mejor control de plagas, disminuyendo la presencia de daños por las plagas: mariposa blanca (Pieris sp. palomilla (Plutella xylostella y áfidos (Brevicoryne brassicae y Myzus persicae.No viveiro floresta 'La Florida' da Corporação Autônoma Regional do Cauca (CRC se abalizou o efeito do extrato de fique (Furcraea sp como controlador de plagas no cultivo de repolho (Brassica oleracea. Utilizarão- se quatro tratamentos (Branco, solução extrato de fique a 30% v/v, 20% v/v e 10% v/v. As medições fizeram-se durante seis semanas para vigor, altura, diâmetro, dano por pragas y dano por enfermidades. A aplicação foi de uma vez durante as três primeiras semanas; y as três seguintes a aplicação foi de duas por semanas. Os resultados analisaram-se utilizando o paquete estadístico SPSS 11.5, realizaram-se uma ANOVA com um nível de confiança dos 95% (p = 0,05 e uma proba de Tuckey. A análise mostra que a aplicação do extrato duas vezes por semana (extrato de fique a 30% v/v, apresentou o melhor controle de pragas reduzindo a presencia de danos por as pragas: Borboleta branca (Pieris sp, mariposa (Plutella

  5. Caracterización de los efectos de la administración de la lectina antinutricional nigrina de corteza de Sambucus nigra L. y efecto sinérgico con los polifenoles delverde

    OpenAIRE

    Cabrero Lobato, Patricia

    2012-01-01

    Las proteínas inactivadoras de ribosomas (RIPs) son enzimas con actividad N-glicosidasa del ARN ribosómico. Algunas poseen dos cadenas una con actividad enzimática y otra con actividad lectina (RIPs de tipo dos). Entre estas RIPs se encuentra la nigrina b presente en la corteza de Sambucus nigra L. La nigrina b presenta toxicidad selectiva en función de la dosis y la vía de administración. El blanco son las células de las criptas del intestino delgado. Nuestra hipótesis es que los efectos tóx...

  6. Propiedades antifúngicas diferenciadas de extractos vegetales como estrategia potencial para la prevención, manejo y control del "moho verde" (Trichoderma spp.). En el cultivo de los hongos comestibles (Lentinula, Pleurotus).

    OpenAIRE

    Reyes Quintanar, Claudia Katia

    2014-01-01

    En la actualidad, se utilizan agroquímicos como el benomil para el control de Trichoderma en el cultivo de hongos comestibles; sin embargo, su uso es cada vez más restringido por la sociedad debido a su potencial toxicidad y persistencia en el ambiente. Los alimentos producidos con productos naturales son cada vez más demandados, debido a esto, el objetivo del presente estudio fue el obtener extractos vegetales con propiedades antifúngicas diferenciadas para el control del “moho verde” (Trich...

  7. Relación entre la población microbiológica y el contenido de nutrientes en un abono orgánico fermentado AOF

    Directory of Open Access Journals (Sweden)

    Francisco Gracía

    2005-10-01

    Full Text Available La riqueza de un Abono Orgánico Fermentado, se determina por la población de microorganismos allí presentes, éstos dependen de la temperatura, el pH, la humedad, el oxígeno y alimento principalmente. Dichas condiciones cambian entre un biol, bocashi y el suelo; pues en éste las poblaciones que se encuentran no son las mismas de los AOF. En consecuencia el aporte de tales abonos es alimento para las plantas a partir de los minerales agregados en forma de sulfatos, fosfatos, carbonatos y de la mineralización-humificación de la materia orgánica. También es nutriente para los microorganismos que utilizan estos minerales y las moléculas orgánicas. El porcentaje de materia orgánica se convierte en: fuente de alimento para los actinomicetos, carbono para fijadores de nitrógeno de vida libre, fosfatos inorgánicos para solubilizadores de este compuesto y demás organismos presentes en el medio.

  8. Simulation of the electric systems of the Laguna Verde nuclear power station; Simulacion de los sistemas electricos de la Central Laguna Verde

    Energy Technology Data Exchange (ETDEWEB)

    Rodriguez Lozano, Saul; Ruiz Ponce, Gerardo E [Instituto de Investigaciones Electricas, Cuernavaca (Mexico)

    1992-03-01

    In this article, the electric system models of the Laguna Verde Nuclear Power Station (CNLV) simulator, are presented. These models permit the functioning simulation, in the different operation modes of the main generator (Ruiz and Rodriguez 1991a), of the auxiliaries system and of the substation (Ruiz and Rodriguez 1991b), and of the emergency diesel generators system (Ruiz and Rodriguez 1991c). The general characteristics of such systems, considered as the basis to obtain the representative models, which were developed as modules in an independent way to be integrated in the simulator, are also described. [Espanol] En este articulo, se presenta los modelos de los sistemas electricos del simulador de la Central Laguna Verde (CLV). Estos modelos permiten simular el funcionamiento, en los diferentes modos de operacion del generador principal (Ruiz y Rodriguez, 1991a), del sistema de auxiliares y de la subestacion (Ruiz y Rodriguez, 1991b) y del sistema de generadores diesel de emergencia (Ruiz y Rodriguez, 1991c). Asimismo, se describen las caracteristicas generales de tales sistemas, consideradas como la base para obtener los modelos representativos, los cuales fueron desarrollados como modulos en forma independiente para integrarse al simulador.

  9. Hybrid Fv - Biogas/Diesel System Measuring With Homer. Case of Application: Farm Pozo Verde, Jamundi Municipality, Cauca Valley, Colombia; Dimensionado de un Sistema Hibrido Fv - Biogas/Diesel mediante el Empleo de la Herramienta Homer. Caso de Aplicacion: Granja Pozo Verde, Municipio de Jamundi, Valle del Cauca, Colombia

    Energy Technology Data Exchange (ETDEWEB)

    Dominguez, J.; Manrique, P. A.; Pinedo, I.

    2009-11-25

    This report completes the previous one, by adding the characterization of renewable energy systems based on optimization and sizing tools. A case study has been carried out in the Valley of Cauca (Colombia) using HOMER, once the solar energy potential was defined. This work is about the production of electricity using hybrid power systems (HPS). The HPS chosen for this study is based on two of the most common energy resources in most of Colombian rural areas: solar energy and biomass waste. The biomass waste is obtained by animal manure from livestock farms, particularly from pigs, which is highly valued in terms of energy production. The breeding of pigs has a huge economic, environmental and social importance in this Colombian region. In this report, the HPS technology and the energy contribution of the biogas produced from animal manure are described. A technical and economic simulation of a HPS has been performed using the optimization tool HOMER. These reports are the result of a collaboration established between Universidad del Valle (Colombia) and CIEMAT (Spain), and have been done by the author while his staying at our center included on his PhD program. Keywords: renewable energies, hybrid systems, biogas, technology sizing, rural electrification, Latin America. (Author) 8 refs.

  10. Verde pentru biciclete (Green for Bycicles

    Directory of Open Access Journals (Sweden)

    Romina Faur

    2011-06-01

    Full Text Available The campaign “Verde pentru biciclete” (Engl. “Green for bicycles” is the first official initiative from Timişoara that encourages adopting cycling as an ecological and economical alternative to urban transportation; this addresses the citizens of Timişoara and not only, regardless of age. “Verde pentru biciclete” is a pedalling movement supported by the Bega Foundation, in collaboration with the Gratzu Sportive Club, KissFM, Ziua de Vest, Agenda and agenda.ro. The debut of the campaign took place of October 25th 2008, with the first “Verde pentru biciclete” event – “The bicycles Counting”. All the events that followed were held to draw attention on the importance of cycling, together with obtaining of certain facilities, necessary for the cyclists’ safe movement in traffic. Moreover, a number of communication platforms have been created between the fans of cycling; thus, the website www.pedaleaza.ro has been created, through which those interested can inform themselves or communicate on the forum and discussions group verde_pentru_biciclete@yahoogroups.com o through the social network Facebook (facebook.com/ verdepentrubiciclete. This paper presents the activities held within the campaign since its beginning until today, as well as our future plans.

  11. How Palo Verde saved millions of dollars

    International Nuclear Information System (INIS)

    Anon.

    1994-01-01

    In autumn 1992, Arizona Public Service adopted new project control procedures for outages at its three-unit Palo Verde PWR site, including: the switch to a PC-based environment; a new scheduling system; and the generation of improved graphics for decision making. Major cost savings were made and three further outages have now benefitted from the new systems. (author)

  12. Importancia de los ensayos de compactibilidad, resistencia en verde y humedad en mezclas de moldeo

    Directory of Open Access Journals (Sweden)

    Alain Valdés-Crúz

    2000-03-01

    Full Text Available A partir de la teoría del agua rígida y de los trabajos desarrollados por Wenninger se alcanzó una concepción más clara sobre los mecanismos de aglutinación en verde de las mezclas de moldeo. Al mismo tiempo, se presta una particular atención a los ensayos de compactibilidad, resistencia a la compresión en verde y humedad, como índices más representativos de dicho proceso de aglutinación. Se demuestra la relación que existe entre estos ensayos y las consecuencias de los trabajos de Wenninger. Se hace particular énfasis en el ensayo de compactibilidad por considerarlo de aplicación limitada.

  13. Mejoramiento continuo en la gestión del ciclo de acarreo de camiones en minería a tajo abierto en Antamina, Cerro Verde, Toquepala, Cuajone, Yanacocha, Alto Chicama, Las Bambas, Cerro Corona, Antapacay y Pucamarca

    OpenAIRE

    Mauricio Quiquia, Gerardo William; Mauricio Quiquia, Gerardo William

    2015-01-01

    En la actualidad se esta llevando acabo una revolución de la forma de hacer minería, en la cultura minera misma, y esto se debe básicamente al avance tecnológico que nos permite disponer de sistemas altamente desarrollados para el control de los procesos. Actualmente el costo más alto en operaciones mina a Tajo abierto, es el costo de acarreo de los camiones gigantes ya sea en combustible, llantas y repuestos, este costo representa casi el 45 % del costo de minado, es por eso que se plantea ...

  14. Evaluación del estado de conservación y viabilidad poblacional de la lapa verde (Ara ambiguus) en el Corredor Biológico Binacional El Castillo-San Juan-La Selva, Costa Rica - Nicaragua

    OpenAIRE

    Monge-Arias, Guisselle

    2010-01-01

    Proyecto de Graduación (Doctorado Interuniversitario en Ciencias Naturales para el Desarrollo. Énfasis en Manejo de Recursos Naturales) Instituto Tecnológico de Costa Rica, Universidad Estatal a Distancia, Universidad Nacional de Costa Rica, Programa de Estudios del Doctorado en Ciencias Naturales para el Desarrollo, 2010 Muchos aspectos de la biodiversidad y de la biología de la conservación se comprenden mejor estudiando las aves, más que cualquier otro grupo de organismos. Proba...

  15. LAS COMUNICACIONES INTEGRADAS DE MARKETING (CIM COMO PILAR DE LA ESTRATEGIA DE MARKETING VERDE Y SUS IMPLICACIONES EN LA GESTIÓN AMBIENTAL

    Directory of Open Access Journals (Sweden)

    NELCY ROCÍO ESCOBAR MORENO

    2012-01-01

    Full Text Available Este documento examina el constructo de Comunicaciones Integradas de Marketing (CIM, desde su definición hasta su aplicación a partir de la perspectiva del mercadeo verde en la estrategia organizacional. El texto presenta tres grandes discusiones, primero, una reflexión particular sobre los aportes e implicaciones más importantes de las Comunicaciones Integradas de Marketing y de cada uno de sus instrumentos a la estrategia de gestión ambiental de las organizaciones. Luego, una caracterización general del consumidor verde y de otros stakeholders de la organización, en particular, de su papel en el proceso estratégico de la comunicación verde. Finalmente, como conclusión de este trabajo, se plantean algunas consideraciones sobre la necesaria aplicación de este concepto en la propuesta de gestión ambiental organizacional en la actualidad.

  16. Estrategias de mercadeo verde utilizadas por empresas a nivel mundial

    Directory of Open Access Journals (Sweden)

    Castellano, Susie

    2015-09-01

    Full Text Available La preocupación por el medio ambiente se ha convertido en una temática que inquieta a toda la colectividad actual, desde los más pequeños hasta los más grandes, desde la pequeña empresa hasta la gran industria. Sumado a esto, el auge de normativas ambientales que establecen regulaciones al empresario, los obliga a tener una mayor conciencia de los daños que pueden causar sus acciones al medio ambiente. Es por esto, que paulatinamente ha comenzado, por parte de las empresas, la adopción de estrategias en el área de mercadeo verde que les permita comercializar sus productos y servicios de forma que los mismos sean ambientalmente compatibles. En el presente trabajo, se abordaron las diferentes estrategias que han venido asumiendo empresas de diferente índole para hacer frente a tan importante filosofía en el ámbito mundial. Para tal fin, se hizo la revisión y contrastación de artículos escritos en el marco del mercadeo verde por Rivera y Molero (2006, Chamorro (2001, Samper y Echeverri (2008 principalmente, encontrándose que cada vez son más las empresas que se suman a esta forma de mercadear sus procesos y productos y más los consumidores que anteponen criterios ecológicos ante variables de otra índole, modificando sus hábitos de consumo.

  17. ¿Para dónde va el Magdalena? : elementos sobre logística y transporte verde

    OpenAIRE

    Duque Escobar, Gonzalo

    2015-01-01

    Algunos elementos sobre logística y transporte verde, preparados a nombre de la SMP-UN, para aportar al conocimiento de las problemáticas sociales, ambientales y económicos del proyecto de navegabilidad del río Magdalena, cuya navegabilidad exige, además de considerar las limitantes ecológicas del río y su lamentable estado relacionado con la deforestación de cuencas como causa estructural y primera de la sedimentación, estructurar un sistema intermodal de transporte de carga para la Región A...

  18. Laguna Verde: the nuclear debate in Mexico

    International Nuclear Information System (INIS)

    Weinberg, Bill.

    1987-01-01

    Mexico in planning to start up its first nuclear power station at Laguna Verde in the state of Veracruz (1988). The history of the plant is traced; it should have been finished by 1974. Both the fuel and the technology have been imported from the United States for Laguna Verde. The design, a Mark II Boiling Water Reactor, is controversial and there are doubts as to its safety. Opposition to the plant on safety and environmental grounds has grown. In April 1987 a 'Chernobyl anniversary' demonstration had 10,000 protesters and opponents of the plant are becoming more militant. The main opposition is from environmental and 'Green' groups but also includes intellectuals. However, politically, Mexico would find it embarrassing to cancel the plant and also it wants to be seen as a 'First World' rather than a 'Third World' country. (U.K.)

  19. Achieving engineering excellence at Palo Verde

    International Nuclear Information System (INIS)

    Prawlocki, F.C.

    1989-01-01

    Early in 1988, the management of the newly formed Palo Verde Nuclear Generating Station (PVNGS) Engineering and Construction Division was faced with a dilemma: how to build a competent, confident, efficient engineering organization in the face of increasing requirements and tightened fiscal controls. This paper discusses steps taken by Palo Verde to address actions taken to effect a smooth transition from construction to operations and the development of the Engineering Excellence Program. The Engineering Excellence Program will continue to evolve over time as the number of the NED's [Nuclear Engineering Department] personnel grown and processes are changed over the course of the next few years. As tasks from the Engineering Excellence Program action plan are completed, the results achieved are expected to be integrated into the routine business of the NED

  20. Crecimiento del mejillón verde Perna viridis (Bivalvia: Mytilidae bajo sistema de cultivo de fondo en la ensenada de Turpialito, Golfo de Cariaco, Venezuela Growth and survival of the green mussel P. viridis (Bivalvia: Mytilidae in bottom culture conditions in Turpialito, Golfo de Cariaco, Venezuela

    Directory of Open Access Journals (Sweden)

    Vanessa Acosta

    2012-12-01

    Full Text Available Los moluscos representan uno de los grupos más importantes desde el punto de vista económico en la acuicultura marina, debido a los bajos costos de producción y a su alta rentabilidad. En este estudio se planteó probar la hipótesis de un mayor crecimiento de Perna viridis en cultivo de fondo, por un mejor aprovechamiento de alimento presente en el medio, lo cual permitirá descartarla o no como especie de cultivo para el Golfo de Cariaco. En este sentido, se evaluó el crecimiento y la supervivencia del mejillón verde P. viridis en condiciones de cultivo de fondo entre julio 2007 y febrero 2008. Las semillas del mejillón (35.81±1.41mm de longitud fueron obtenidas en la localidad de Guaca (costa norte del estado Sucre y trasladadas hasta la Estación Hidrobiológica de Turpialito, golfo de Cariaco, estado Sucre-Venezuela, en donde se sembraron en cestas “españolas”. Mensualmente se determinó supervivencia así como la longitud máxima de la concha, la masa seca del músculo, resto de tejidos y de la gónada. Los parámetros ambientales (temperatura del agua, salinidad, oxígeno disuelto, clorofila a, seston total y su fracción orgánica, en la zona de cultivo se determinaron cada 15 días. Mensualmente se realizaron determinaciones de proteínas, lípidos y carbohidratos al seston. Durante todo el estudio el mejillón mantuvo un crecimiento continuo, alcanzando al final una longitud máxima de 78.7±4.43mm. Sin embargo, la tasa de crecimiento de la masa seca de los tejidos somáticos (músculo, resto de tejido y reproductivo, mostraron variabilidad a lo largo del estudio, produciéndose al final un incremento significativo en dichos tejidos. Las variaciones observadas en la tasa de crecimiento de la masa del tejido reproductivo, dependió de las reservas acumuladas y del alimento ofertado por el medio ambiente. El seston orgánico durante toda la experiencia mostró una independencia de la temperatura y de la clorofila a

  1. Palo Verde receives new control room simulator

    International Nuclear Information System (INIS)

    Anon.

    1993-01-01

    A new control room simulator was delivered to Arizona Public Service Company's Palo Verde nuclear generating station in late August. The system, the second simulator on site, will be used for training beginning in January 1994, said David C. Brown, manager of the simulator upgrade project. Having two simulators will ease the current tight training schedule, and allow expansion of instruction to personnel other than licensed operators

  2. First fuel reload in Laguna Verde

    International Nuclear Information System (INIS)

    Bahena B, D.

    1992-01-01

    A report containing the activities carried out during the first reload of nuclear fuel and major maintenance in the Laguna Verde nuclear reactor is presented. The previous and the specific activities are included. These last are related without including the technical considerations, data or the operation details, because these data were documented inside the registrations of the CFE, the ININ and in personal way. (Author)

  3. Intraplate seismicity across the Cape Verde swell

    Science.gov (United States)

    Vales, Dina; Matias, Luís.; Haberland, Christian; Silveira, Graça.; Weber, Michael; Carrilho, Fernando; Dias, Nuno

    2010-05-01

    The Cape Verde Archipelago ((15-17°N, 23-26°W) is located within the African plate, about 500km west of Senegal, in the African coast. The islands are located astride the Cape Verde mid-plate topographic swell, one of the largest features of its type in the world's ocean basins. The origin of this Cape Verde swell is still in debate. Previous determinations of the elastic thickness (Te) reveal a normal Te and a modest heat flow anomaly which suggest that the swell cannot be fully explained by uplift due to thermal reheating of the lithosphere by an underlying ‘‘hot spot'' and that other, deep-seated, mantle processes must be involved. The CV-PLUME (An investigation on the geometry and deep signature of the Cape Verde mantle plume) project intends to shape the geometry and deep origin of the Cape Verde mantle plume, via a combined study of seismic, magnetic, gravimetric and geochemical observations. Through this study we intend to characterize the structure beneath the archipelago from the surface down to the deep mantle. The core of this 3-year project was a temporary deployment of 39 Very Broad Band seismometers, across all the inhabited islands, to recorder local and teleseismic earthquakes. These instruments were operational from November 2007 to September 2008. In this work we report on the preliminary results obtained from the CV-PLUME network on the characterization of the local and regional seismicity. To detect the small magnitude seismic events the continuous data stream was screened using spectrograms. This proved to be a very robust technique in the face of the high short-period noise recorded by many of the stations, particularly during day time. The 10 month observation time showed that the background seismic activity in the Archipelago and surrounding area is low, with only a very few events recorded by the complete network. However, two clusters of earthquakes were detected close to the Brava Island, one to the NW and a second one, more active

  4. Camp Verde Adult Reading Program. Final Performance Report.

    Science.gov (United States)

    Maynard, David A.

    This document begins with a four-page performance report describing how the Camp Verde Adult Reading Program site was relocated to the Community Center Complex, and the Town Council contracted directly with the Friends of the Camp Verde Library to provide for the requirements of the program. The U.S. Department of Education grant allowed the…

  5. Condición actual del mercado del abono orgánico en el cantón de Alvarado, Cartago

    Directory of Open Access Journals (Sweden)

    Laura Brenes-Peralta

    2014-06-01

    Con estas acciones, además de gestionar adecuadamente los residuos sólidos orgánicos según establece la legislación nacional, y ofrecer un producto amigable con el ambiente a los agricultores de la zona, se podría generar un ingreso que permita el autosostenimiento de esta actividad.

  6. “Aunque verde, todo cinturón Aprieta”

    Directory of Open Access Journals (Sweden)

    Eulalia Borja Bedoya

    2016-05-01

    Full Text Available Medellín, en su afán de venderse al mundo como una ciudad de servicios se ha vuelto hipócrita con sus ciudadanos y ha venido construyendo desde los centros de poder trasnacionales unos modelos de ciudad excluyentes, que cada vez intentan acabar con esos que no han tenido mucho, pero que luchan con lo poco, que se han tomado a Medellín y han construido otras maneras de vivirse la ladera, siempre en una lucha constante, reivindicando su derecho a la ciudad; Las laderas de Medellín si bien se han ido conformando en gran parte como cinturones de miseria, al mismo tiempo también lo han hecho como territorios de vida y resistencia. Allá se siembra y se aprende a vivir con dignidad aunque sin mucho dinero, saben qué es lo verde porque vienen del campo y saben cultivar la tierra, son conscientes de que habitan un territorio con agua, árboles, suelos para cuidar y respetar y es por eso que durante todos estos años han sabido hacerse una misma con la montaña que los acogió cuando la ciudad entera les dio la espalda.

  7. Analysis of the three dimensional core kinetics NESTLE code coupling with the advanced thermo-hydraulic code systems, RELAP5/SCDAPSIM and its application to the Laguna Verde Central reactor; Analisis para el acoplamiento del codigo NESTLE para la cinetica tridimensional del nucleo al codigo avanzado de sistemas termo-hidraulicos, RELAP5/SCDAPSIM y su aplicacion al reactor de la CNLV

    Energy Technology Data Exchange (ETDEWEB)

    Salazar C, J H; Nunez C, A [CNSNS, Dr. Jose Ma. Barragan No. 779, Col. Narvarte, 03020 Mexico D.F. (Mexico); Chavez M, C [UNAM, Facultad de Ingenieria, DEPFI Campus Morelos (Mexico)

    2004-07-01

    The objective of the written present is to propose a methodology for the joining of the codes RELAP5/SCDAPSIM and NESTLE. The development of this joining will be carried out inside a doctoral program of Engineering in Energy with nuclear profile of the Ability of Engineering of the UNAM together with the National Commission of Nuclear Security and Safeguards (CNSNS). The general purpose of this type of developments, is to have tools that are implemented by multiple programs or codes such a that systems or models of the three-dimensional kinetics of the core can be simulated and those of the dynamics of the reactor (water heater-hydraulics). In the past, by limitations for the calculation of the complete answer of both systems, the developed models they were carried out for separate, putting a lot of emphasis in one but neglecting the other one. These methodologies, calls of better estimate, will be good to the nuclear industry to evaluate, with more high grades of detail, the designs of the nuclear power plant (for modifications to those already existent or for new concepts in the designs of advanced reactors), besides analysing events (transitory and have an accident), among other applications. The coupled system was applied to design studies and investigation of the Laguna Verde Nuclear power plant (CNLV). (Author)

  8. Propuesta de mejoramiento tecnológico de techos verdes para el clima tropical andino

    Directory of Open Access Journals (Sweden)

    Alejandro Gómez Cubillos

    2018-01-01

    Full Text Available La gestión de riesgos por el aumento de la escorrentía superficial en zonas urbanas requiere intervención desde múltiples enfoques, ambientales, sanitarios, sociales y económicas. La infraestructura verde aporta soluciones de creciente interés por sus beneficios ambientales y potencial aprovechamiento económico. Este artículo propone un mejoramiento tecnológi-co para la adaptación de los techos verdes al clima tropical andino, en términos de su com-portamiento hidrológico, para lo cual se desarrolló un montaje experimental con seis módu-los de techos verdes extensivos y un módulo testigo (solo cubierta. El montaje experimental permitió la obtención de datos de 21 eventos de precipitación, modificando la configuración de dos factores experimentales, tipo de planta con seis variaciones y altura de sustrato con tres variaciones y tres eventos más para verificar el efecto de la variación de la pendiente de la cubierta, como tercer factor. Los datos obtenidos se procesaron para el cálculo de las va-riables hidrológicas de interés (precipitación, escorrentía, duración del evento, tiempo ante-rior seco, que expresan las características del evento y los indicadores del comportamiento hidrológico (coeficientes de escorrentía basado en volumen Cv y en el caudal pico Cp y tiem-po de retraso K y su análisis estadístico permitió identificar cuáles factores experimentales tienen o no influencia significativa en dichos indicadores. Finalmente, se desarrollaron herramientas para la simulación de variables e indicadores hidrológicos a partir de series de precipitación externas y su implementación en una herramienta de diseño que seleccione las configuraciones de techos verdes que presenten el mejor comportamiento hidrológico.

  9. Equilibrio entre fases para la aplicación de solventes verdes en tecnología de alimentos

    OpenAIRE

    Hernández, Elvis J.

    2010-01-01

    [ES]: En este trabajo se presentan los resultados obtenidos del estudio (experimental y teórico) del equilibrio entre fases de compuestos alimentarios y solventes verdes, aportando nuevos resultados a los fundamentos de los procesos de separación por contacto en equilibrio de la tecnología de alimentos. Se obtuvieron nuevos datos de equilibrio entre fases, aplicando métodos experimentales a altas presiones (equilibrio líquido – fluido supercrítico, para el disolvente dióxido de carbono) y ...

  10. Un aporte para el desarrollo de tecnologías verdes en el Parque Tecnológico Universitario

    Directory of Open Access Journals (Sweden)

    Ana Judith Paredes Ch.

    2006-01-01

    Full Text Available El objetivo del estudio es analizar los avances en tecnologías verdes, producto de los aportes del capital intelectual que se gesta en la Universidad del Zulia y promovido conjuntamente con el Parque Tecnológico (PTU-Zulia; donde la innovación y el desarrollo de la Planta de Presurización y Despresurización Ambiental PDA, se considera como una innovación tecnológica de impacto ambiental positivo; por lo cual, se prevé que su estrategia de inserción en el mercado verde, contribuirá a una mayor integración del sector académico, gubernamental y productivo. Sin lugar a dudas, es un desarrollo tecnológico que soporta el cumplimiento de una de las funciones fundamentales de las instituciones de educación superior, como lo es, maximizar la relación Universidad - Industria. Para el desarrollo del mismo, se efectuó la revisión de literatura gris que sustentan los avances de las innovaciones e investigaciones ejecutadas en el PTU- Zulia y fuentes bibliográficas, cuyos aportes permitieron concluir que a mediano plazo, esta fundación coadyuvará no sólo a la generación, transferencia de conocimientos y nuevos desarrollos; sino también, es capaz de mercadear sus tecnologías con perspectiva comercial, convirtiéndose en un ente potencial de recursos extraordinarios capaz de autogestionarse. Asimismo, el desarrollo de tecnologías verdes y la transferencia de conocimiento; contribuirán a la sustitución progresiva de las tecnologías contaminantes, aspecto considerado desde una perspectiva de responsabilidad social avalada por legislaciones que regulan la materia ambiental

  11. First fuel reload in Laguna Verde; Primera recarga de combustible en Laguna Verde

    Energy Technology Data Exchange (ETDEWEB)

    Bahena B, D

    1992-01-15

    A report containing the activities carried out during the first reload of nuclear fuel and major maintenance in the Laguna Verde nuclear reactor is presented. The previous and the specific activities are included. These last are related without including the technical considerations, data or the operation details, because these data were documented inside the registrations of the CFE, the ININ and in personal way. (Author)

  12. CAMBIOS EN PROPIEDADES FÍSICAS DE UN VERTIC HAPLUSTALF POR APLICACIÓN DE ABONO ORGÁNICO FERMENTADO (AOF

    Directory of Open Access Journals (Sweden)

    JOSÉ FRANCISCO GARCÍA M

    2014-06-01

    Full Text Available La producción agrícola provoca en los suelos impactos que alteran sus condiciones físicas, químicas y biológicas; sin embargo la literatura reporta recuperación en las características edáficas al agregar materia orgánica, devolviéndole al suelo su capacidad productiva; esta razón motivó un proyecto para evaluar los cambios ocurridos en la estabilidad estructural, retención de humedad, humedad aprovechable, densidad aparente y consistencia respecto a la aplicación de abonos orgánicos fermentados (AOF, durante dos y ocho años en un “haplustalfvértico” con cultivos de hortalizas, leguminosas, tubérculos y gramíneas. Teniendo en cuenta que este suelo durante más de 50 años estuvo plantado en cultivos de papa en rotación con cebada en agricultura convencional y las adiciones de materia orgánica solo se hacían con incorporación de rastrojo. Los resultados mostraron que la incorporación de ésta favorece al suelo en la mejora de las condiciones físicas evaluadas, en especial cuando se hace asiduamente.

  13. Espacios verdes urbanos como componente de un ecosistema. Funciones, servicios, usuarios, participación de la comunidad, iniciativas y acciones

    Directory of Open Access Journals (Sweden)

    José G. Vargas-Hernández

    2017-12-01

    Full Text Available Este trabajo entrega una revisión crítica respecto de la literatura especializada existente acerca de algunas características importantes de los espacios verdes urbanos, como los componentes, funciones, servicios, participación comunitaria, iniciativas y acciones desde una perspectiva eco sistémica. El análisis parte del supuesto de que los espacios verdes urbanos son ecosistemas de vital importancia para mejorar la calidad de vida en un entorno urbano y para proporcionar servicios ecosistémicos, como la biodiversidad y la regulación del clima. Por lo tanto, el espacio verde urbano es un componente esencial de un ecosistema en cualquier desarrollo comunitario. Satisfacer las necesidades de los usuarios está relacionado con las funciones y servicios que los espacios verdes urbanos proporcionan a las comunidades. La participación, el compromiso y el desarrollo de la comunidad requieren mecanismos para asegurar el cumplimiento de las necesidades y aspiraciones de los usuarios locales en la comunidad. Los métodos empleados en este análisis son la revisión de literatura y de documentos secundarios, el análisis de datos existentes acerca de usos y usuarios, y entrevistas con autoridades. Como conclusiones, el documento sugiere iniciativas ambientales, económicas y sociales para las autoridades locales y las comunidades que se pueden aplicar a todas las partes interesadas representadas e involucradas.

  14. GRIP BARBADOS/CAPE VERDE RADIOSONDE V1

    Data.gov (United States)

    National Aeronautics and Space Administration — The GRIP Barbados/Cape Verde radiosonde data set consists of generally two soundings per day (06Z and 12Z) launched from Barbados, and one sounding per day (12Z)...

  15. The technology transfer and the Laguna Verde power plants

    International Nuclear Information System (INIS)

    Garza, R.F. de La

    1991-01-01

    The process of technology transfer to the construction of Laguna Verde Nuclear Power Plants, Mexico, is described. The options and the efforts for absorbing the technology of Nuclear Power Plant design and construction by the mexican engineers are emphasized. (author)

  16. New species of mayflies (Ephemeroptera) from Cape Verde

    Czech Academy of Sciences Publication Activity Database

    Soldán, Tomáš; Bojková, J.

    2015-01-01

    Roč. 3926, č. 4 (2015), s. 561-575 ISSN 1175-5326 Institutional support: RVO:60077344 Keywords : Cape Verde * Macaronesia * West Africa Subject RIV: EH - Ecology, Behaviour Impact factor: 0.994, year: 2015

  17. Palo Verde Unit 3 BMI nozzle modification

    International Nuclear Information System (INIS)

    Waskey, D.

    2015-01-01

    The 61 BMI (Bottom Mount Instrumentation) nozzles of the unit 3 of the Palo Verde plant have been examined through ASME Code Case N722. The nozzle 3 was the only one with leakage noted. The ultrasound testing results are characteristic of PWSCC (Primary Water Stress Corrosion Cracking). The initiation likely occurred at a weld defect which was exposed to the primary water environment resulting in PWSCC. All other nozzles (60) showed no unacceptable indications. Concerning nozzle 3 one crack in J-groove weld connected large defect to primary water. An environmental model has been used to simulate and optimize the repair. The AREVA crew was on site 18 days after contract award and the job was completed in 12 days, 30 hours ahead of baseline schedule. This series of slides describes the examination of the BMI nozzles, the repair steps, and alternative design concepts

  18. Impuestos verdes: una meta de equidad

    Directory of Open Access Journals (Sweden)

    Lilliana Arrieta Quesada

    2011-09-01

    Full Text Available Al considerar necesario incorporar a los grupos económicos en el gran proyecto de alcanzar metas de desarrollo sostenible, que surge como un nuevo paradigma al tomarse en consciencia por parte de los organismos internacionales, entre ellos las Naciones Unidas, de la necesidad de hacer un planteamiento de desarrollo económico diferente al convencional que considera aspectos ambientales y de equidad social, se admite por primera vez que la explotación de los recursos naturales y su transformación en materia prima y fuente energética, tiene límites, los cuales deben ser considerados en cualquier planteamiento serio de desarrollo económico.Es así como surge la tesis de los impuestos verdes como una opción que permita a los gobiernos incidir tanto en el mercado como en el sector industrial y en los hábitos de los consumidores.

  19. Verdes Mares: The Ideology of the Siren

    Directory of Open Access Journals (Sweden)

    Bruno Marinoni Marinoni

    2009-02-01

    Full Text Available The television channel number 10 of Fortaleza (current TV Verdes Mares, during the 1960 decade, passed through the ideological filter of the Military Dictatorship, when the channel was taken from its owner and given to the businessman Edson Queiroz. The filter had consequences in the next decade with the channel affiliation to the biggest network broadcasting of the country, the Rede Globo, which was also protected by the Military Regime. Based on those two facts, it is intended to discuss some aspects of the exploration models of communication that occurs in the country since the specified period, emphasizing the ideology transmitted by the TV channel which has the biggest audience ratings in Ceará.

  20. Capturing the design bases on Palo Verde

    International Nuclear Information System (INIS)

    Rogers, A.C.; Prawlocki, F.C.

    1989-01-01

    Over the past several years, the nuclear power industry has been directing considerable attention to plant configuration control. Utilities have been put in difficult situations due to changes made in plants without full original design basis knowledge. Once a plant is constructed, there is often insufficient information from the reactor designer or the architect/engineer to properly support operations, especially changes to the plant. In many cases utilities do not know the design bases for their units. As a result of these concerns, many utilities have been searching for ways to define the appropriate design bases for their plant. This paper discusses steps taken by Palo Verde to produce a design bases document and how it is being used to support the operation of the three nuclear units

  1. Leptospira interrogans in Rodents from Cape Verde.

    Science.gov (United States)

    Plata-Luis, Josué; Foronda, Pilar; Martín-Alonso, Aaron; Feliu, Carlos; Alves, Joana; Gil, Horacio; Valladares, Basilio

    2016-11-01

    Leptospirosis is an important worldwide zoonotic disease that can infect both animals and humans. In most cases, leptospirosis is a nonspecific self-limiting illness, but some patients can develop a severe form with a high mortality. This study was carried out in Santiago Island, Cape Verde, in 2012-2013. A total of 62 wild rodents (Rattus rattus and Mus domesticus) were analyzed. The lipL32 gene, present only in pathogenic Leptospira spp., was amplified by PCR, and 16 samples were positive (25.8%). In both rodent species, Leptospira interrogans was identified. The results show the presence of pathogenic Leptospira in the three localities analyzed in Santiago. The presence of L. interrogans demonstrates a serious health risk for the population, since this species has been associated with the most severe form of leptospirosis, the Weil's disease in humans, a severe infection with jaundice, renal failure, and hemorrhage.

  2. DCVD Measurements at the Laguna Verde NPP

    Energy Technology Data Exchange (ETDEWEB)

    Chen, J.D.; Gerwing, A.F. [Channel Systems Inc., Pinawa MA (Canada); Kosierb, R. [Canadian Nuclear Safety Commission, Ottawa, ON (Canada); Vones, J.; Broodryck, A. [International Atomic Energy Agency, Vienna (Austria)

    2006-12-30

    A new digital Cerenkov viewing device (DCVD) with high ultraviolet light sensitivity has been developed. Field measurements on BWR spent fuel at Laguna Verde Nuclear Power Plant Unit 2 resulted in new Cerenkov information on GE9 and GE12 spent fuel assemblies. Off-alignment measurements show: quantitative differences in the degree of light collimation from between the fuel rods; lack of light collimation from water rods; and decreased light collimation from partial length rod positions. Hidden rods could also be detected in off-angle views. The results indicate that it may be possible to detect missing partial-length fuel rods in GE12 fuel assemblies. The new DCVD was able to verify low burnup, long-cooled, natural uranium GE6 fuel assemblies.

  3. DCVD Measurements at the Laguna Verde NPP

    International Nuclear Information System (INIS)

    Chen, J.D.; Gerwing, A.F.; Kosierb, R.; Vones, J.; Broodryck, A.

    2006-01-01

    A new digital Cerenkov viewing device (DCVD) with high ultraviolet light sensitivity has been developed. Field measurements on BWR spent fuel at Laguna Verde Nuclear Power Plant Unit 2 resulted in new Cerenkov information on GE9 and GE12 spent fuel assemblies. Off-alignment measurements show: quantitative differences in the degree of light collimation from between the fuel rods; lack of light collimation from water rods; and decreased light collimation from partial length rod positions. Hidden rods could also be detected in off-angle views. The results indicate that it may be possible to detect missing partial-length fuel rods in GE12 fuel assemblies. The new DCVD was able to verify low burnup, long-cooled, natural uranium GE6 fuel assemblies

  4. Martin Chalfie y la proteína verde fluorescente Martin Chalfie y la proteína verde fluorescente

    Directory of Open Access Journals (Sweden)

    Zacarías Pereira Vega

    2012-12-01

    Full Text Available The history of the green fluorescent protein (GFP starts with Osamu Shimomura at the beginning of the 1960s, with his discovery from the extracts of the Aequorea victoria jellyfish. However, it is not until the beginning of the 1990s, that the neurobiologist Martin Chalfie, applying genetic engineering tech- niques, achieved for the first time the heterology expression of the GFP in prokaryotes (E. coli and eukaryotes (Caernohabditis elegans, from a clone of the jellyfish’s gen that codifies the GFP prepared by Douglas Prasher. Besides fluorescing in green, the results from this work also demonstrated that it does not require any other cofactor or enzyme of the jellyfish for its expression or for the own forming of a fluorophore. At the same time, Chalfie proposed that the GFP could be used for the marking of cells on living ani- mals or the tag of proteins. Based upon these results, many scientists started working on research related to the GFP; actually this protein is used on different fields such as biotechnol- ogy, development biology, environmental chemistry and medicine. In the case of the latter, it has helped to elucidate the cellular mechanisms from which diseases are made of. Science owes Roger Tsien, amongst other contributions, the creation of differ- ent mutations of the GFP.La historia de la proteína verde fluorescente (GFP se inicia con Osamu Shimomura a principios de la década de 1960, con su descubrimiento de esta proteína a partir de extractos de la medusa Aequorea victoria. Sin embargo, es a principios de la década de 1990 que el neurobiólogo Martin Chalfie, aplicando técnicas de ingeniería genética, logra por primera vez la expresión heteróloga de la GFP en procariotas (Escherichia coli y eucariotas (Caernohabditis elegans, a partir de un clon del gen de la medusa que codifica a la GFP, preparado por Douglas Prasher. Además de fluorescer en verde, los resultados de este trabajo también demostraron que no se

  5. AMIDO RESISTENTE EM FARINHAS DE BANANA VERDE

    Directory of Open Access Journals (Sweden)

    Dayana Portes RAMOS

    2010-03-01

    Full Text Available

    Este trabalho teve por objetivo avaliar o teor de amido resistente (AR em farinhas de banana verde produzidas a partir de treze genótipos de bananeira. Para a produção da farinha foram separadas a 1ª, 3ª e 5ª pencas de cada genótipo, na qual cada penca correspondeu a uma repetição. Os frutos de cada penca no estádio 1 (casca completamente verde de maturação foram descascados manualmente, cortados em fatias circulares de 0,5 cm e desidratados em estufa com circulação de ar a 40ºC por 48 horas, sendo em seguida moídos. A análise de AR consistiu em um processo enzimático, calculando-se o conteúdo final pela concentração de glicose liberada. Os resultados foram submetidos à análise estatística e mostraram diferenças significativas para o teor de AR nas farinhas obtidas dos genótipos de bananeira, sendo que a farinha com maior teor de AR foi a produzida a partir do cultivar ‘Nam’ (40,25% e a menor pelo híbrido ‘Fhia 01’ (10,01%. Pode-se concluir que o conteúdo de AR varia em relação ao genótipo utilizado para a confecção da farinha e que a banana pode ser uma boa opção de estudo de alimento funcional.

  6. Verde Macael: A Serpentinite Wrongly Referred to as a Marble

    OpenAIRE

    Navarro, Rafael; Pereira, Dolores; Gimeno, Ana; Barrio, Santiago

    2013-01-01

    Serpentinites are used in both exterior and interior locations, but not all serpentinites are equal: they vary in physical-mechanical behavior and are not all suitable for similar uses. The serpentinites most commonly used worldwide come from India, Pakistan or Egypt. Spain has traditionally quarried two ultramafic massifs, one in Galicia (Verde Pirineos) and one in Andalucía (Verde Macael). Some of these quarries were small family-run businesses. In both cases, these rocks are commercially a...

  7. Análisis de los modos de acceso y los patrones de uso de la población respecto a los espacios verdes urbanos, como base para su planificación

    Directory of Open Access Journals (Sweden)

    Jimena Gómez Piovano

    2015-11-01

    Full Text Available En las ciudades, los espacios verdes públicos forman uno de los principales articuladores de la vida social, siendo lugares de encuentro e integración de los habitantes. La OMS considera que la superficie óptima mínima destinada a espacios verdes por habitante debe ser de 10 a 15 m2. No obstante, este indicador no garantiza la igualdad de acceso a todas las personas. Por ello, la superficie disponible y la ubicación de dichos espacios son factores fundamentales para asegurar esa igualdad y, por consiguiente, la calidad de vida urbana. Este trabajo centra su investigación en el análisis de los distintos modos de acceso y los patrones de uso de espacios verdes del Área Metropolitana de Mendoza, Argentina, con el fin de desarrollar un plan de inclusión de nuevos espacios verdes que aborden los ejes de cantidad y de igualdad de acceso peatonal. Con ese objetivo, se realizan encuestas a los usuarios, la cuales demuestran que la mayor parte de ellos llegan a estos sitios caminando, que existe relación entre el medio de transporte y la frecuencia con la que asisten a los espacios verdes, y que los radios de acción de dichos sitios varían entre 300 y 400m, dependiendo de la superficie del espacio. 

  8. Ouro Verde MG 2: nova cultivar de mungo-verde para Minas Gerais Ouro Verde MG 2: new mungbean cultivar for Minas Gerais State, Brazil

    Directory of Open Access Journals (Sweden)

    Rogério F. Vieira

    2002-03-01

    Full Text Available Dentre várias linhagens introduzidas do "Asian Vegetable Research and Development Center" (AVRDC, sobressaiu a linhagem VC 3984-B-2-B-4-1-B, que recebeu o nome de Ouro Verde MG 2. Suas sementes são verde-brilhantes e o peso de 1000 unidades varia de 43 a 51 g. O início da floração ocorre em torno de 33 dias após a emergência e a primeira vagem madura surge entre 23 e 33 dias. Por se tratar de espécie de maturação desuniforme, podem ser necessárias duas a quatro colheitas. As plantas podem atingir 95 cm de altura. As vagens são marrom-escuras e concentram-se na parte superior da planta. É suscetível a duas doenças que geralmente aparecem no final do ciclo de vida do mungo-verde: míldio-pulverulento (Erysiphe polygoni e mancha-foliar-de-cercospora (Cercospora canescens. A 'Ouro Verde MG 2' é resistente ao acamamento, e o seu rendimento, em três ensaios instalados em dezembro, janeiro e fevereiro, variou de 1,5 a 2,0 t/ha. Esses rendimentos foram, em média, 12% superior ao da cultivar Ouro Verde.Among many accessions introduced from Asian Vegetable Research and Development Center (AVRDC, the VC 3984-B-2-B-4-1-B stood out and was named 'Ouro Verde MG 2'. The seeds are bright green and 1000-seed weight ranges from 43 to 51 g. Flowering starts approximately 33 days after emergence and the first pod ripens between 23 and 33 days later. As mungbean is a non-uniform maturation species, two to four harvests could be necessary. The plant can reach 95 cm high. The pods are dark brown and concentrated in the upper canopy. This cv. is susceptible to two diseases which generally appear late in the crop: powdery mildew (Erysiphe polygoni and cercospora leaf spot (Cercospora canescens. 'Ouro Verde MG 2' is resistant to lodging. The yield measured in three experiments carried out in December, January, and February, ranged from 1.5 to 2.0 t/ha. In average, these yields were 12% superior than the achieved by the cultivar 'Ouro Verde'.

  9. Numerical modelling of Alto Verde landslide using the material point method

    Directory of Open Access Journals (Sweden)

    Marcelo Alejandro Llano-Serna

    2015-01-01

    Full Text Available Finalizando el año 2008 en la ciudad de Medellín, Colombia, ocurrió un deslizamiento de tierra en la urbanización Alto Verde provocando la muerte de doce personas y la destrucción de seis viviendas. Los deslizamientos se destacan por el elevado nivel de deformaciones en una masa de suelo. El presente trabajo utilizó el método del punto material (MPM, método basado en partículas que utiliza una doble discretización Lagrangiano-Euleriana. La doble discretización genera un marco numérico robusto que permite la simulación de grandes distorsiones. El modelo numérico planteó una simplificación de las condiciones geotécnicas, morfológicas y estructurales de las edificaciones envueltas en Alto Verde. El estado de deformación final de la simulación se acomodó satisfactoriamente a las características geométricas finales observadas en campo. Los resultados obtenidos generan aplicaciones como el diseño de barreras, análisis de riesgo o la determinación de la distancia mínima de retiro a una ladera susceptible de deslizamiento.

  10. NPDES Permit for Mesa Verde National Park Wastewater Treatment Facility in Colorado

    Science.gov (United States)

    Under NPDES permit number CO-0034398, the United States Department of the Interior, National Park Service, Mesa Verde National Park is authorized to discharge from the Mesa Verde National Park wastewater treatment plant, in Montezuma County, Colo.

  11. Evaluación del contenido ruminal como suplemento alimenticio para el consumo de ganado bovino ensilándolo con Lactobacillus casei

    OpenAIRE

    Acevedo Montoya, Diana; Buitrago Arteaga, Luisa Fernanda

    2008-01-01

    El contenido ruminal es un subproducto obtenido del sacrificio de ganado bovino y por tiempos ha sido arrojado a ríos y quebradas cercanas a los frigoríficos produciendo un alto impacto ambiental debido a la carga orgánica que este contiene. En algunos frigoríficos a la ruminaza se le ha dado un valor agregado como abono orgánico. Debido a su gran cantidad de flora y fauna microbiana, y a los nutrientes que contiene, la ruminaza puede ser considerada como un suplemento alimenticio para animal...

  12. Estrategia de comunicación para promover el uso de biodigestores plásticos en las fincas del Cantón Salitre

    OpenAIRE

    Francisco Valle Sánchez

    2015-01-01

    El incremento de la actividad agropecuaria como fuente de ingresos del campesino ha traído el problema de contaminación por desechos orgánicos de sus animales, de ahí la necesidad de introducir una tecnología de bajo costo, sencilla y de fácil acceso que le permita al campesino solucionar este problema que tiene sanción por parte de la autoridad ambiental. El uso de biodigestores plásticos logra este objetivo, incorporando beneficios adicionales como abono orgánico biosol, que van a mejorar s...

  13. Diversity of Genetic Resources and Genetic Association Analyses of Green and Dry Chillies of Eastern India Diversidad de Recursos Genéticos y Análisis de Asociación Genética de Ajíes Verdes y Secos del Este de India

    Directory of Open Access Journals (Sweden)

    Arup Chattopadhyay

    2011-09-01

    Full Text Available Chilli (Capsicum annuum L. is regarded as one of the main commercial vegetable and spice crops at the global level. Maximum diversity can be noted among the cultivars/landraces available in India with respect to shape, size, yield, quality, and other traits. The present experiment was conducted to identify the most promising chilli variety suited for green and dry purposes, to study the genetic variability for different traits and to assess the association of different yield attributing traits with the green and dry yield of chilli. Thirty four genotypes were characterized during a 2-yr period. Most of the genotypes possessed the character constellation of C. annuum. Two genotypes, ‘Chaitali Pointed’ and ‘BC CH Sel-4’ were found most promising with respect to green fruit yield (272.79 g, 221.10 g per plant and dry fruit yield (54.56 g, 44.44 g per plant. Phenotypic and Genotypic Coefficient of Variation values for green fruit weight (119.95%, 111.26%, green fruit girth (89.76%, 48.93%, weight of red ripe fruit (112.02%, 111.93%, weight of dry fruit (111.63%, 110.97% and number of fruits per plant (86.05%, 85.02% were recorded to be high. Green fruit yield per plant, ascorbic acid content, and number of fruits per plant also showed very high broad-sense heritability and genetic advance. From the study of correlation and path coefficient analyses, the number of fruits per plant, green fruit length for green chilli, weight of dry fruit and the number of fruits per plant for dry chilli were found to the most important selection indices.El ají (Capsicum annuum L. es considerado como uno de los principales cultivos comerciales de vegetales y especias a nivel mundial. La máxima diversidad puede ser observada entre los cultivares y razas disponibles en India con respecto a forma, tamaño, producción, calidad, y otros rasgos. Este experimento se realizó para identificar la variedad de ají más promisoria y apropiada para fruto verde y seco

  14. Laguna Verde after the extended power increase

    International Nuclear Information System (INIS)

    Herrera C, M. N.; Castaneda G, M. A.; Cardenas J, J. B.; Garcia de la C, F. M.

    2012-10-01

    The project of extended power increase that was implemented in both units of the nuclear power plant of Laguna Verde beginning with the stage feasibility evaluation in nuclear side of the facilities, that is to say the affectation of the power increase in the equipment s, systems and components of the nuclear power plant; besides the feasibility evaluation a study cost-benefit for the rehabilitated and modernization of the equipment s, systems and components of Plant Balance was realized. Once considered technical and economically feasible the project began the engineering evaluations required to carry out the licensing of the new operation conditions, as well as beginning to the elaboration of the technical specifications purchase of the equipment s, systems and components of the Plant Balance. While on one hand was carried out the administration of the licensing of the extended power increase for other was carried out the necessary engineering to make the physical changes in the conventional side of the nuclear power plant. Once concluded the constructive stage beginning the final stage of the project, the starting-up tests, operation and performance of the Units under the new operation conditions. This work describes this last stage that contains the technical base, the realized tests and the obtained results. (Author)

  15. Start-up and operation of Laguna Verde-2

    International Nuclear Information System (INIS)

    Torres Ramirez, J.F.

    1996-01-01

    The 665 MWe Laguna Verde-2 nuclear generating unit was accepted into commercial operation on April 10, 1995. The boiling water reactor plant by General Electric (GE) was first synchronized with the grid on November 11, 1994. Laguna Verde-2 is identical with Laguna Verde-1 on the same site. That unit had gone critical for the first time in November 1988 and had first been synchronized with the power grid on April 13, 1989. Commercial operation of Laguna Verde-1 had been started on July 29, 1990. Mexico's only nuclear power plant had been built 70 km north of Veracruz on the east coast and had been scheduled to start operation in 1976. As the Mexican nuclear power program was reduced, the scheduled commissioning dates suffered more and more delays. In the full of 1987, the investigation by the Operational Safety Review Team (Osart) of the International Atomic Energy Agency (IAEA) had indicated that the safety requirements of installations and equpiment were met, and that the whole plant was well prepared for fueling. In mid-1988, the Mexican Government had issued the permit to fuel the Laguna Verde-1 reactor. The contract to build the two units had been awarded in 1972/73. No other nuclear power plants are currently under construction or in the planning phase in Mexico. (orig.) [de

  16. 75 FR 52045 - Arizona Public Service Company, Palo Verde Nuclear Generating Station, Unit 3; Environmental...

    Science.gov (United States)

    2010-08-24

    ... Company, Palo Verde Nuclear Generating Station, Unit 3; Environmental Assessment and Finding of No.... NPF-74, issued to Arizona Public Service Company (APS, the licensee), for operation of Palo Verde... Statement for the Palo Verde Nuclear Generating Station, NUREG-0841, dated February 1982. Agencies and...

  17. 75 FR 47808 - Verde Hydro, LLC; Notice of Preliminary Permit Application Accepted for Filing and Soliciting...

    Science.gov (United States)

    2010-08-09

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project No. 13819-000] Verde Hydro, LLC... Intervene, and Competing Applications August 2, 2010. On July 21, 2010, Verde Hydro, LLC filed an... the feasibility of the Verde Hydroelectric Project, located in Maricopa County, in the State of...

  18. 77 FR 9974 - Notice of Entering Into a Compact With the Republic of Cape Verde

    Science.gov (United States)

    2012-02-21

    ... Republic of Cape Verde AGENCY: Millennium Challenge Corporation. ACTION: Notice. SUMMARY: In accordance..., and the Republic of Cape Verde. Representatives of the United States Government and the Republic of Cape Verde executed the Compact documents on February 10, 2012. Dated: February 14, 2012. Melvin F...

  19. Segmentação no Mercado dos Vinhos Verdes na Região Norte de Portugal: o caso dos gestores de restauração Green Wine Market Segmentation in the North of Portugal: the case of restaurateur managers La Segmentación del Mercado de los Vinos Verdes en la Región Norte de Portugal: la situación de los gestores de restauración

    Directory of Open Access Journals (Sweden)

    MARTINS, Francisco Vitorino

    2009-03-01

    published about the wine consumer behaviour, with applications in the context of market segmentation. Using as segmentation base nine variables that measure the importance attributed to tangible and intangible features in the process of wine acquisition, we propose a classification of the restaurateur managers in the north of Portugal into two groups.RESUMENEs notorio que para producir vinos se requiere conocimiento, pero actualmente también el conocimiento es necesario para comercializarlo. Durante siglos, los académicos y productores se empeñaron en perfeccionar técnicas que permiten hacer mejores vinos, pero el reconocimiento de que es necesario un especial esfuerzo para su comercialización es un tema reciente. Históricamente los factores de éxito de las empresas que comercializan vino se fundamentaban en la tecnología de producción y en la calidad de sus productos. Sin embargo, el aumento de la competitividad del mercado actualmente requiere el conocimiento del consumidor de vino para poder satisfacer mejor sus necesidades. El mercado del vino prosperó en refinamiento y las oportunidades de segmentación de mercado también aumentaron. Este trabajo aporta una revisión de algunos estudios sobre el comportamiento del consumidor de vino en el contexto de la segmentación de mercado. Como base de segmentación se utilizaron nueve variables que evalúan la importancia atribuida a características tangibles e intangibles en el proceso de adquisición del vino. Se propone clasificar los gestores de restauración de la región norte de Portugal en dos grupos.

  20. Caracterización del producto molido de hueso de res calcinado para su utilización como abono orgánico

    OpenAIRE

    Guallichico Guanotoa, Carlos Santiago; Cabrera Contento, Freddy Paul

    2017-01-01

    The objective of this research is the design, manufacture and evaluation of a hammer mill that will be used for the grinding of calcined beef bone, analyzing the characteristics of the material produced that will be used as organic fertilizer increasing the nutritional content of the soil for growth Of different crops. The small hammer mill is designed and built with locally available materials. It evaluates the operation of the mill and the action of organic fertilizer on arable land of t...

  1. Una revolución verde en la educación: las estrategias de aprendizaje

    Directory of Open Access Journals (Sweden)

    Clifton Chadwick

    1991-06-01

    Full Text Available Una "revolución verde", es propuesta para el área de la Educación, a través del desarrollo y uso de estrategias de aprendizaje. Aprender a aprender es promovido a través de estrategias cognitivas que llevan al auto-aprendizaje, estrategias afectivas detonan el uso de estrategias cognitivas de procesamiento y ejecución. Se enfatiza la meta-cognición como parte de las estrategias de aprendizaje, las cuales deben integrarse en el aula y el currículum, cambiando metodología y contenido. Esto reduciría la deserción y repetición escolar y capacitaría al estudiante para funcionar mejor en la vida.

  2. Strategic Analysis for the MER Cape Verde Approach

    Science.gov (United States)

    Gaines, Daniel; Belluta, Paolo; Herman, Jennifer; Hwang, Pauline; Mukai, Ryan; Porter, Dan; Jones, Byron; Wood, Eric; Grotzinger, John; Edgar, Lauren; hide

    2009-01-01

    The Mars Exploration Rover Opportunity has recently completed a two year campaign studying Victoria Crater. The campaign culminated in a close approach of Cape Verde in order to acquire high resolution imagery of the exposed stratigraphy in the cliff face. The close approach to Cape Verde provided significant challenges for every subsystem of the rover as the rover needed to traverse difficult, uncharacterised terrain and approach a cliff face with the potential of blocking out solar energy and communications with Earth. In this paper we describe the strategic analyses performed by the science and engineering teams so that we could successfully achieve the science objectives while keeping the rover safe.

  3. 30 years in the Veracruz state coast landscape: Laguna Verde nuclear power station. 1. ed.; 30 anos de paisaje costero veracruzano: Central Nucleoelectrica Laguan Verde

    Energy Technology Data Exchange (ETDEWEB)

    Guevara, S; Moreno Casasola, P; Castillo Campos, G; Dorantes, C; Gonzalez Garcia, F; Halffter, G; Isunza, E; Lot H, A; Mendoza, R; Paradowska, K; Priego, A; Sanchez Vigil, C; Vazquez, G [Comision Federal de Electricidad and Instituto Nacional de Ecologia A.C. (Mexico)

    2008-07-01

    results of the environmental measurements also demonstrate that the nuclear option of electrical energy generation, when it is operated with safety and efficiency, is one of the friendlier forms with the environment of power generation. [Spanish] Hace 36 anos nacio uno de los proyectos energeticos mas importantes de Mexico; el diseno y construccion de la Central Nuclear Laguna Verde. Este proyecto se volvio realidad gracias al compromiso de un grupo de profesionistas mexicanos que dieron lo mejor de ellos para su realizacion. En Mexico no existia en ese momento una legislacion que contemplara la proteccion del medio ambiente; sin embargo, la Constitucion preve que cuando en el pais no exista legislacion para el desarrollo de un proyecto. Este debe adoptar la legislacion del pais que lo esta vendiendo. En el caso especifico de Laguna Verde, se adopto la legislacion de los Estados Unidos de America y en la parte ambiental se tuvo que realizar el primer Manifiesto de Impacto Ambiental, que se titulo Informe ambiental para la construccion de la Central Nuclear Laguna Verde en el Estado de Veracruz. Este estudio lo realizaron varias instituciones tanto nacionales como extranjeras. Entre las mas sobresalientes se cuenta con: la Universidad Nacional autonoma de Mexico, el Instituto Politecnico Nacional, la Universidad Veracruzana, el Instituto Nacional para la Investigacion de los Recursos Biologicos, el Instituto de Ecologia, A.C. Con este informe, los ingenieros se dieron a la tarea de disenar y construir, los biologos y ecologos a realizar los estudios para mitigar los efectos causados al medio ambiente durante la construccion y, posteriormente, durante la operacion de la Central Nuclear. Despues de 18 anos de operacion comercial de la central se concluye el presente libro, en el cual se comparan los resultados obtenidos en 1972, cuando se iniciaron los estudios para el informe ambiental, contra los obtenidos a lo largo de este periodo. Es importante ver en los resultados de

  4. Comparación de la calidad del humus de material vegetal con el de residuos orgánicos domésticos, resultado del compostaje mediante el sistema de pilas

    Directory of Open Access Journals (Sweden)

    Juan Pablo Rodriguez Miranda

    2017-01-01

    Full Text Available La investigación se fundamentó en el compostaje del material vegetal de humedales artificiales, puestos en marcha en un proyecto piloto de tratamiento de aguas residuales para la Quebrada Mi Padre de Jesús ubicada a los alrededores de la Facultad de Medio Ambiente y Recursos Naturales de la Universidad Distrital Francisco José de Caldas, realizado en el año 2010. Teniendo en cuenta que estos residuos vegetales, terminan su vida útil en los humedales y no tienen algún uso específico, se generó una alternativa de aprovechamiento de estos residuos, en la producción de compost o abono orgánico. Surge entonces la necesidad de encontrar un método que haga posible su notable reducción, transformación y aprovechamiento de tal manera que se genere un impacto positivo en el ámbito ambiental, económico, social y sanitario. En este caso el compostaje se empleó como técnica para la biodegradación de los residuos vegetales de las especies Buchón de Agua (Eichhornia crassipes, Buchón Cucharita (Limnobium laevigatum. y Junco (Schoenoplectus californicus, transformándolos en un abono orgánico; de igual forma se biodegradaron residuos vegetales de plaza de mercado, que fueron recolectados de la Plaza de mercado de Paloquemao ubicada en la ciudad de Bogotá, empleando la misma técnica con el propósito de tener un punto comparativo en la calidad final de los abonos, con respecto a lo estipulado en la norma NTC 5167 cuarta actualización, referente a parámetros químicos, físicos, microbiológicos con los que deben cumplir los abonos generados a partir de residuos orgánicos de origen animal y vegetal.

  5. Transient analysis for Laguna Verde nuclear power plant

    International Nuclear Information System (INIS)

    Ramos Pablos, J.C. et.al.

    1991-01-01

    Relationship between transients analysis and safety of Laguna Verde nuclear power plant is described a general panorama of safety thermal limits of a nuclear station, as well as transients classification and events simulation codes are exposed. Activities of a group of transients analysis of electrical research institute are also mentioned (Author)

  6. Verde Valley Community Needs Assessment Project, Spring 1979.

    Science.gov (United States)

    Gose, Frank J.

    A study of the educational needs to be met by the Verde Campus of Yavapai College (YC) involved surveying seven populations. Responses were returned by 88 non-retired community residents, 96 retired members of the community, 191 members of the business sector, 240 current students, 208 former students, 19 faculty members, and 261 high school…

  7. Prefabricated solution to modular construction in Cape Verde

    Science.gov (United States)

    Vieira, Nuno; Amado, Miguel; Pinho, Fernando

    2017-02-01

    Nowadays, the lack of adequate housing in Cape Verde is a growing problem. The migration of the population living in the countryside to the major cities generates an increase of the diameter of the cities. With the lack of economic power, the migrating families tend to occupy the land with houses which don't present proper conditions to living. Praia is the capital of Cape Verde and so on the biggest city of the country. This fact leads Praia to being the city with major economic power and job offer in all country. Consequently, Praia has developed the biggest slum of the Cape Verde and it is urgent to approach this problem in order to create solutions that reveal capacity to start solving it. Cape Verde's unique dry subtropical climate turns indispensable a careful resolution of the housing, in order to ensure the comfort of the occupants. The modular construction is a solution with potential to approach this problem with a fast and economic response. In order to answer the situation, this article introduces a modular solution in order to reach the needing of thermal comfort to the specific case of Praia.

  8. Estudios comparativos para la determinación de Ocratoxina A en granos de café verde

    Directory of Open Access Journals (Sweden)

    Carlos Vallejos

    2006-02-01

    Full Text Available LA OCRATOXINA A (OTA ES UNA DE LAS MICOTOXINAS MÁS NEFROTÓXICA y nefrocancerígena producida por varias especies de Aspergillus y Penicillium. OTA se encuentra frecuentemente en productos de origen vegetal como cereales, cerveza, vino, granos de café, cacahuetes y frutas secas. Desde que se ha descrito su presencia en el café verde, las compañías de café han prestado mucha atención a la calidad micotóxica del café verde para garantizar la seguridad alimentaria. En este estudio se comparan tres métodos para la determinación de OTA: Cromatografía de capa fina-TLC, Cromatografía líquida de alta resolución-HPLC y Vicam Ochratest en muestras de café, y se ha validado el Vicam Ochratest para el análisis de OTA en el café con columnas de inmunoafinidad. Por su bajo costo y la similitud de los resultados comparados con el método HPLC, el uso del método Vicam Ochratest se presenta como muy útil para los pequeños productores de café de Nicaragua, pues les permitirá mejorar su competitividad en el mercado internacional.

  9. Aprendiendo entre la naturaleza: Una revisión de los beneficios de los espacios verdes en el ambiente escolar

    Directory of Open Access Journals (Sweden)

    Marina Bernardes

    2017-12-01

    Full Text Available Los problemas del aprendizaje encuentran interfaces en diversas áreas como lo es el espacio escolar. Este estudio investigó la literatura existente sobre el tema de los ambientes restauradores y la teoría de la restauración de la atención, en relación al ambiente escolar. No hay estudios sobre estas problemáticas en los ambientes escolares de América del Sur. El método empleado en este trabajo fue una revisión sistemática de la literatura, en el idioma inglés, para luego analizar los estudios aplicados y los resultados ya obtenidos. Los resultados presentan una gama de investigaciones que identifican los beneficios de los espacios verdes para la restauración de la atención de los estudiantes. Desde esta perspectiva, fue posible determinar la importancia de la exposición a ambientes naturales para favorecer el desempeño estudiantil de las futuras poblaciones académicas, así como también resaltar la importancia de desarrollar estudios en esta área, considerando los efectos positivos que generan las áreas verdes en el espacio escolar.

  10. Metodología y herramienta VERDE para la evaluación de la sostenibilidad en edificios

    Directory of Open Access Journals (Sweden)

    Macías, M.

    2010-03-01

    Full Text Available Sustainable Building has grown out of a synthesis of the environmentally-oriented Green Building movement and the broader SD movement. The green movement itself grew out of 1970’s concerns about Energy Conservation, which subsequently morphed into Energy Efficiency, as fuel prices declined during the 1980’s. During the 1980’s, energy issues receded somewhat into the background of general discussion, but concerns arose about the impact that building operations and the production of their constituent materials have on the natural environment. During the same decade, the issue of poor indoor air quality and inadequate ventilation in sealed buildings (“sick building syndrome” became a very public concern. A consensus has gradually evolved concerning the type of issues that should be included within a green type of analysis. Since 2000 the number of environmental assessment methodologies around the world has been increasing rapidly. BREEAM (BRE Environmental Assessment Method was the first system (launched in 1990, to offer an environmental label for buildings. Nevertheless, LEED (Leadership in Energy and Environmental Design has been an incontrovertible success as a tool to promote market transformation. There are a number of different schemes around the world, most of which have been based on GBC and iiSBE (International Initiative for a Sustainable Built Environment. A new assessment method based on impact reduction calculation has been developed. The tool call VERDE is applicable to commercial complexes and residential developments. The methodology are presented and discussed in the paper.

    La edificación sostenible ha crecido a partir del movimiento hacia la edificación verde y bajo el movimiento más amplio de desarrollo sostenible. El movimiento verde se desarrolla en los años 70 con especial énfasis en la conservación de la energía y la eficiencia energética. En los 80 crece la preocupación acerca del impacto que

  11. Importación de espárragos verdes frescos de Perú a España

    OpenAIRE

    Canto Cabeza de, Bartolomé; Hurtado Chorrillos, Edda Yrina; Wenxing Ma , Estrella; Chunliang Wang , Manuel; Ni Wang, Nebita

    2008-01-01

    El presente proyecto es la conclusión del XIV Máster en Comercio Internacional, impartido por la Facultad de Ciencias Económicas de la Universidad Complutense de Madrid. Su objetivo es servir de guía a la realización de operaciones de importación de espárragos frescos verdes de origen y procedencia Perú a España. La parte de financiación es una de las más sensibles del proyecto, en su elaboración se considero los temas de negociación, contratación, análisis de coste beneficio y...

  12. INFLUENCIA DEL CULTIVO INTERCALADO EN LA PRODUCCIÓN Y CALIDAD DEL FRUTO DE TOMATE CEREZA

    Directory of Open Access Journals (Sweden)

    Fabricio Rossi

    2013-12-01

    Full Text Available El presente trabajo tiene por objetivo determinar la influencia en la cosecha y calidad de los frutos de Solanum lycopersicum L. (1753 cv. cereza [Lycopersicum esculentum Mill. 1768] (tomate en convivencia con cultivos intercalares de cinco Fabaceae, plantas auxiliadoras en la agricultura y dos tratamientos con y sin residuos de cosecha de Zea mayz L. El estudio fue im- plantado en el Polo Centro Sul, Piracicaba-SP. Brasil, en suelo Argisol rojo-amarillo distrófico. El diseño experimental fue en bloque al azar con cinco repeticiones y ocho tratamientos en con- vivencia con plantas de tomate con:1 Sin residuos de ZEAMA-Zea mayz L.;2 Con residuos de ZEAMA- Zea mayz L. cv.cativerde 2; 3 CANEN- Canavalia ensiformis (L. DC.; 4CRO- JU- Crotalaria juncea L.; 5 MUCPR- Mucuna pruriens (L. DC. cv. arbusto (enana o anã; 6 VIGRA- Vigna radiata L. 7 LUPAL- Lupinus albus L.; 8 VIGUN- Vigna unguiculata (L. Walp. Los resultados mostraron que la producción y calidad de los frutos de tomate fue normal, sin ataque de plagas y no se aplicó ningún agrotóxico. El abono verde, así como la presencia o ausencia de residuos de cosecha de maíz, no interfiere en la temporada de cosecha. En cuanto al análisis de sólidos solubles totales (SST y acidez (pH no difirió entre los tratamientos.

  13. Cape Verde: Marketing Good Governance Kap Verde: Die Vermarktung von Good Governance

    Directory of Open Access Journals (Sweden)

    Bruce Baker

    2009-01-01

    Full Text Available Faced with a lack of natural resources Cape Verde has made good governance one of its most marketable products. Running parallel to the institutionalisation of democratic politics there has been an overhaul and growing sophistication in public administration, though certain weaknesses persist. This report argues that it is reform and improvement in this area in particular that has enabled this small island state to punch above its weight and achieve remarkable social, economic and political results. But will the successful formula of the past decade prove sufficient for the future? Poverty and unemployment have by no means been conquered. Much of the economic growth has been based in the tourist sector and the government is well aware of the dangers of over-reliance on a single industry. Cape Verde’s midway location between South America and Europe and its increasing international transport connections will continue to offer advantages to drug traffickers. The next few years of the world financial crisis will show whether marketing good governance is enough and whether this is the model for small resource developing states. Der Inselstaat Kap Verde hat seine Anstrengungen zu guter Regierungsführung (Good Governance erfolgreich demonstriert. Parallel zur Institutionalisierung demokratischer Regierungsstrukturen wurde die Verwaltung reformiert und modernisiert, wenn auch immer noch Problembereiche erkennbar sind. Der Autor sieht insbesondere in den politischen und administrativen Reformen den Hintergrund für die erfolgreiche soziale, wirtschaftliche und politische Entwicklung dieser kleinen Inselrepublik. Aber wird dieses Rezept, das im vergangenen Jahrzehnt seine Wirksamkeit beweisen konnte, auch in Zukunft ausreichend sein? Armut und Unterbeschäftigung sind keineswegs besiegt. Ein Großteil des Wirtschaftswachstums basiert auf dem Tourismussektor; die Regierung ist sich der Gefahr wohl bewusst, die in zu großer Abhängigkeit von einem

  14. Analiza parametrów geotechnicznych gruntów słabonośnych na przykładzie dokumentowania warunków budowy podłoża gruntowego dla inwestycji liniowej

    Directory of Open Access Journals (Sweden)

    Piotr Paprocki

    2016-10-01

    Full Text Available Kluczowe znaczenie dla bezpiecznego, a zarazem ekonomicznego zaprojektowania drogowej inwestycji liniowej mają informacje dotyczące obszaru i głębokości występowania gruntów słabonośnych, ich rodzaju (charakterystyki oraz wartości prawidłowo określonych parametrów odkształceniowych i wytrzymałościowych. W artykule przedstawiono analizy przeprowadzone w celu wyznaczenia wyprowadzonych wartości parametrów geotechnicznych słabonośnych gruntów organicznych, tj. torfów gytii i namułów, oraz korelacje ich cech fizycznych i mechanicznych występujących w podłożu projektowanej drogi ekspresowej S5 na odcinku Białe Błota – granica województw wielkopolskiego i kujawsko-pomorskiego. W analizie wykorzystano wartości parametrów geotechnicznych uzyskanych na podstawie badań terenowych (wiercenia, sondowania CPTU, sondowania sondą krzyżakową, badania dylatometrem Marchettiego oraz badań laboratoryjnych (badania w aparacie trójosiowym, testy edometryczne. W odniesieniu do badanych gruntów organicznych należy stwierdzić, że zawartość części organicznych ma istotny wpływ na inne cechy fizyczne gruntów, takie jak: wilgotność naturalna, gęstość objętościowa, oraz na parametry wytrzymałościowo-odkształceniowe i może być używana (obok rodzaju gruntu jako cecha charakteryzująca występujące w podłożu warstwy gruntów organicznych.

  15. El uso de las cubiertas verdes como reducción de la huella de carbono por absorción vegetal. Caso de Villaverde

    Directory of Open Access Journals (Sweden)

    Jorge Miguel Carretero Monteagudo

    2013-09-01

    Full Text Available ResumenEl tema de este trabajo es a grandes rasgos la comprobación de la eficacia de las cubiertas verdes en la reducción de la huella de carbono, centrándonos exclusivamente en las capacidades asimilativas del dióxido de carbono de la vegetación contenida sobre estas cubiertas. La presente comprobación de la eficacia de las cubiertas verdes, fue realizada sobre el contexto del distrito de Villaverde en la Periferia Sur de Madrid. Sobre este distrito, se analizaron diferentes factores en relación con la eficacia de las cubiertas verdes. Para a posteriori establecer cuáles podrían ser los casos de zona homogénea dentro del distrito que pudieran dar datos más relevantes acerca de la eficacia de las cubiertas verdes. Considerando paralelamente un análisis de las capacidades de asimilación de los diferentes tipos de cubierta verde (Intensiva y extensiva. Finalmente se establecieron cuatro escenarios de aplicación sobre las zonas más relevantes derivadas de la selección anterior, para comprobar finalmente las aportaciones en la reducción de dióxido de carbono que una cubierta verde puede aportar a un tejido urbano. Se comprobó que la eficacia de las cubiertas verdes en la absorción del dióxido de carbono es muy limitada, siendo más adecuada la regeneración natural del espacio público.Palabras clave  Reducción Dióxido Carbono Tejidos Naturalización CubiertasAbstractThe main issue of this report is the study of the green roofs reliability aimed to carbon footprint reduction, Focusing only in carbon dioxin assimilative capabilities of vegetation placed on. This study was done in the background of Villaverde district placed in the southern outskirts of Madrid. About this district, different facts related to the reliability of green roofs were analyzed, in order to remark the most relevant cases of urban fabrics within the district, whose results could be the most interesting ones about the efficiency of green roofs. In a

  16. Los microclimas térmicos urbanos y áreas verdes en la ciudad de Sancti Spíritus. Los SIG en el planeamiento.

    Directory of Open Access Journals (Sweden)

    Félix D. Hernández Rubio

    2008-07-01

    Full Text Available La presente investigación es originada por la necesidad en la ciudad de Sancti Spíritus de un estudio ambiental, que interrelacione cómo ha influido el cambio climático en el clima urbano y la relación de este último con el sistema de áreas verdes de la ciudad, como elemento moderador del ambiente térmico a escala de planeamiento, urbana y arquitectónica, y que a su vez proporcionen elementos más precisos para la toma de decisiones y criterios en las acciones de rehabilitación e inserción que se realicen, o para zonas de nuevo desarrollo dentro de la ciudad. Se analiza el déficit de áreas verdes a nivel de zona tipomorfológica y de consejo popular, además se analizan los problemas del cambio climático, la isla de calor urbana, se definen las variables y parámetros que influyen sobre las condiciones microclimáticas térmicas (Coeficiente de Ocupación del Suelo. Pavimentación, y otros aspectos medioambientales. Posteriormente se realizan mediciones del complejo temperatura – humedad relativa del aire y velocidad del viento en 24 puntos de la ciudad, elaborándose mapas en Sistemas de Información Geográficos (SIG, Mapinfo 6.5 sobre el comportamiento del ambiente térmico y humedad relativa del aire en la ciudad, tema sobre el cual no se ha desarrollado ninguna investigación hasta el momento en la ciudad objeto de estudio y de las cuales es pionera el presente trabajo, aportándose nuevos enfoques y estrategias para estas labores, lo cual incorpora nuevos criterios en el Plan General de Ordenamiento Territorial y Urbano (PGOTU.

  17. Safety evaluation of the Laguna Verde nuclear power plant

    International Nuclear Information System (INIS)

    Delgado G, J.L.

    1991-01-01

    The present work describe the licensing process for the first nuclear power plant built in Mexico, it presents the difficulties found during the several years of construction and tests until the phrase a level of safety equivalent to that of the country of origin of the nuclear steam supply system could be applicable to Laguna Verde, at least from the point of view of the mexican regulatory body, and also that this statement could be signed for the inspectors of international organizations. (author)

  18. Cabo Verde telemedicine program: initial results of nationwide implementation.

    Science.gov (United States)

    Latifi, Rifat; Dasho, Erion; Merrell, Ronald C; Lopes, Miguel; Azevedo, Vanda; Bekteshi, Flamur; Osmani, Kalterina L; Qesteri, Orland; Kucani, Julian; Lecaj, Ismet

    2014-11-01

    Telemedicine and e-health have been suggested as one solution for closing the health disparity gap between the developed world and the developing world. Yet evidence is lacking from current successful programs in the developing world and, in particular, from sub-Saharan Africa. The primary objective of our study was to present the preliminary results of our efforts in building the Integrated Telemedicine and e-Health Program for Cabo Verde (ITeHP-CV), with an emphasis on initial utilization and results. This is a prospective study of data collected while we worked to establish a fully functional, integrated national telemedicine network and virtual education network in Cabo Verde. We used the International Virtual e-Hospital Foundation strategic approach known as "initiate-build-operate-transfer" over a 26-month period (November 2011-December 2013). We describe herein the five main pillars of this process that have been implemented: (1) capacity building; (2) network development and deployment of equipment; (3) implementation of clinical telemedicine; (4) implementation of activities related to continuing medical education, delivered from within the country and from abroad; and (5) establishment and use of the electronic virtual library. Based on comprehensive technical and medical assessment of the country's needs, 10 fully functional telemedicine centers in all nine inhabited islands of the Republic of Cabo Verde have been established. RESULTS are presented under the five main pillars of capacity building, network deployment, implementation of clinical telemedicine, implementation of continuing medical education activities, and establishment of the electronic virtual library. The ITeHP-CV has been successfully launched, and the initial results are encouraging. The continuity of the program and sustainability are primary goals once the program is transferred fully to the Ministry of Health of Cabo Verde. A long-term follow-up study is required in order to ensure

  19. Community-based tourism in Cape Verde - a case study

    OpenAIRE

    Tomas Lopez-Guzman; Osvaldo Borges; Ana Maria Castillo-Canalejo

    2011-01-01

    Community-based tourism is taking its place in the world as an alternative to traditional tourist destinations, especially in developing countries. This form of tourism allows for greater contact with the local community and for the tourist to experience new sensations while enabling the economic and social development of the geographic area. In this paper, the results of fieldwork carried out in the island of Fogo (Cape Verde) are presented, assessing the opinion and perception tourists visi...

  20. Les enjeux écologiques de Palo Verde (Costa Rica

    Directory of Open Access Journals (Sweden)

    Bertrand LÉVY

    1992-09-01

    Full Text Available Près de Palo Verde a été créé un parc naturel. Un projet d’irrigation risque de perturber l’écologie de la région. Une carte de son écosystème a été établie par télédétection, pour évaluer l’impact d’un tel projet.

  1. Prototype fuel fabrication for nuclear reactors of Laguna Verde

    International Nuclear Information System (INIS)

    Nocetti, C.; Torres, J.; Medrano, A.

    1996-01-01

    Four prototype fuel bundles for the Laguna Verde Nuclear Power Plant have been fabricated. the type of nuclear fuel produced is described and the process used is commented. As an example of the fabrication criteria adopted, the production model to determine the density of the U O 2 pellets for the different batches of ceramic powder is described. the results are evaluated using the statistical indexes C p and C pk . (author)

  2. Verde Macael: A Serpentinite Wrongly Referred to as a Marble

    Directory of Open Access Journals (Sweden)

    Santiago del Barrio

    2013-02-01

    Full Text Available Serpentinites are used in both exterior and interior locations, but not all serpentinites are equal: they vary in physical-mechanical behavior and are not all suitable for similar uses. The serpentinites most commonly used worldwide come from India, Pakistan or Egypt. Spain has traditionally quarried two ultramafic massifs, one in Galicia (Verde Pirineos and one in Andalucía (Verde Macael. Some of these quarries were small family-run businesses. In both cases, these rocks are commercially available as “green marble.” These serpentinites commonly have a high degree of carbonation, but the process does not always take place with the same intensity. Carbonate can act as a cementing agent of the other phases, increasing the mechanical strength parameters. As a result, an improvement in the strength conditions is achieved, but a misinterpretation of the suitability of the rock may occur because a perception among users that “green marble” is similar to geologically defined marble. This may lead to inappropriate applications as an ornamental stone. At a time of economic crisis in Europe, the natural stone sector is encouraged to invest in research to identify the best quality products that can compete profitably with those currently being imported from other countries. This paper provides a comparison of properties of the Verde Macael serpentinite with a true marble in the hope of contributing to improving the natural stone industrial sector.

  3. Renewable energy projects to electrify rural communities in Cape Verde

    International Nuclear Information System (INIS)

    Ranaboldo, Matteo; Lega, Bruno Domenech; Ferrenbach, David Vilar; Ferrer-Martí, Laia; Moreno, Rafael Pastor; García-Villoria, Alberto

    2014-01-01

    Highlights: • The design of 2 off-grid electrification projects in Cape Verde is developed. • Configurations with hybrid renewable energy systems and micro-grids are considered. • A detailed micro-scale wind resource assessment is carried out. • An optimization model is used in order to support the design. • The proposed system is economically beneficial in comparison with diesel generation. - Abstract: Even though Cape Verde has high wind and solar energy resources, the conventional strategy for increasing access to electricity in isolated rural areas is by centralized microgrids with diesel generators. In this study, the design of 2 off-grid electrification projects based on hybrid wind–photovoltaic systems in Cape Verde is developed and analyzed. The design considers some significant novelty features in comparison with previous studies. First a detailed wind resource assessment is carried out combining meso-scale wind climate data and a specialized micro-scale wind flow model. Then a mathematical model is used for the design of off-grid projects considering a combination of individual systems and microgrids. In this study, locations far from the demand points are also considered as possible generation points. Various design configurations are analyzed and compared. The proposed configurations exploit the highest wind potential areas and are economically beneficial in comparison with diesel generator systems

  4. Living With Parasites in Palo Verde National Park

    Directory of Open Access Journals (Sweden)

    Eben Kirksey

    2012-11-01

    Full Text Available Bruno Latour has tried to bring a parliamentary democracy to the domain of nature. Wading through the swamps of Palo Verde, a national park in the Guanacaste Province of Costa Rica, and wandering onto neighbouring agricultural lands, I failed to find a central place where people were speaking for nature. Departing from a failed attempt to speak for another species (the fringe-toed foam frog, this paper considers how diverging values and obligations shape relationships in multi-species worlds. As spokespersons articulated competing visions of nature on the borderlands of Palo Verde, multiple social and ecological worlds went to war. The haunting specter of capital joined the fray—animating the movements of cattle, grasses with animal rhizomes, rice seeds, and flighty ducks across national borders and through fragmented landscapes. Amidst this warfare, the fringe-toed foam frog was just one tenacious parasite, a noisy agent eating at the table of another, which began to flourish in worlds designed with the well-being of others in mind. Cattails, charismatic birds, and a multitude of insects began interrupting human dreams and schemes. Final solutions to the problem of living with parasites failed in Palo Verde. Humans and parasites, who became para-selves of one another, maintained an abiding presence in the landscape.

  5. Approach to criticality in cold core of the Unit 1 of the cycle 10 of the Laguna Verde power plant with control rods similar in design to the original ones and the advanced ones; Aproximacion a criticidad en frio de la Unidad 1 del ciclo 10 de la CLV con barras de control de diseno similar al original y avanzadas

    Energy Technology Data Exchange (ETDEWEB)

    Perusquia, R.; Ramirez, J.R.; Ortiz, J.J.; Hernandez, J.L.; Montes, J.L. [ININ, A.P. 18-1027, 11801 Mexico D.F. (Mexico)]. E-mail: rpc@nuclear.inin.mx

    2004-07-01

    In the Laguna Verde power plant (CLV) worn out control bars have been replacing for control rods of advanced design. At the moment of the 109 rods of similar design to the original of the Unit 1 of the CLV, 14 of them have been substituted with two types of different advanced control rods. The same as the original rods the advanced rods use boron carbide as control element for neutrons, but additionally they use hafnium, to achieve a longer useful half life. The rods of similar design to the original are homogeneous axially on the other hand the advanced presenting several zones. In principle the advanced rods were designed to be neutronically compatible to the original rods. However the differences in the design and of constituents assumed to consider a different performance during the operation. Since the one numbers of advanced bars is growing with the number of cycles of the CLV reactor has requested to the National Institute of Nuclear Research (ININ) to evaluate in detailed form the performance of the control rods. Previously the calculations and analysis of cycle design that that were carried out assumed that control rods should be of similar design as the original. Using the HELIOS/CM-LENDS system, the effect of the inclusion of advanced rods was analyzed in the approximation of the criticality in cold (20 C) in the cycle 10 of the Unit 1. Four scenarios were poposed, where the type of the rod of substitution control is varied. The value of reactivity was calculated for the rods similar in design to the original and for the advanced one. By comparison of these values, it was found that the value of reactivity of the control rods of the advanced design was superior to the value for rods similar to the original ones by 7.6% for one of the advanced designs and of 13.6% for the other one. (Author)

  6. La enseñanza de la química desde la perspectiva de la Química Verde

    Directory of Open Access Journals (Sweden)

    Pía José González García

    2016-06-01

    Full Text Available La Química Verde, como área de investigación, se comprende como el desarrollo de metodologías para modificar los productos o procesos con la finalidad de reducir o eliminar los riesgos que existen para el medio ambiente y la salud. De este modo, permite proyectar líneas de investigación en la construcción de un conocimiento y enfoques didácticos de las ciencias, y  para ser considerada como parte de los programas Ministeriales. El objetivo del estudio fue conocer y comprender el significado que le otorgan los(as docentes del área a la Química Verde como perspectiva para su enseñanza. A partir de los discursos emanados por los docentes participantes del estudio, se construyeron 4 categorías, las cuales son: la Química Verde como: contexto para la enseñanza de la química, medio de apropiación significativo del aprendizaje de la química, motivadora de la conciencia ambiental y reflejo de la Institución y su relación con los docentes. The teaching of chemistry from the Green Chemistry perspective Green Chemistry (GC, as a research area, understood as the development of methodologies to modify products or processes in order to reduce or eliminate the risks posed to the environment and human health. Thus it is allowing research project lines in building knowledge and didactic approaches of the sciences, and to be considered as part of the ministerial programs. The objective of this study was to know and understand the significance given by teachers in the area to GC as a perspective for education. From the speeches issued by teachers participating in the study, four categories, was built. GC as: context for teaching chemistry, through significant learning chemistry appropriation, motivating environmental awareness and reflection of the institution and its relationship with teachers.  O ensino de química, na perspectiva da Química verde A Química verde, como área de investigação, é compreendida como o desenvolvimento de

  7. Los Espacios Verdes de la Ciudad de Río Cuarto, Córdoba, Argentina. / The Landscape of the City of Rio Cuarto, Cordoba, Argentina.

    Directory of Open Access Journals (Sweden)

    Aun, Liliana

    2005-06-01

    Full Text Available Se presenta un diagnóstico del estado y la distribución de los espacios verdes de la ciudad de Río Cuarto, ubicada a 53º 08' S 64º 22' W, en la Provincia de Córdoba, Argentina. La finalidad es establecer estrategias de actuación en la recuperación y construcción de los espacios verdes y sugerir la forestación con especies autóctonas en los espacios verdes. El control urbanístico se debe apoyar en ordenanzas municipales que preserven y mejoren la tipología urbanística de las plazas./This papers displays the condition and distribution of green areas in Río Cuarto situated at 53º 08' S 64º 22' W, in Cordoba, Argentina. The objective is to set the strategies for the rehabilitation and construction of green areas and to propose the forestation of said areas with native species. The development of the green areas must be founded upon city government ordinances designed to preserve and improve the typology of these areas.

  8. PRODUCCIÓN Y CALIDAD FISICOQUÍMICA DE LECHE DE CABRAS SUPLEMENTADAS CON FORRAJE VERDE HIDROPÓNICO DE MAÍZ

    Directory of Open Access Journals (Sweden)

    Mario Garc\\u00EDa-Carrillo

    2013-01-01

    Full Text Available El objetivo del presente trabajo fue evaluar la producción y calidad fisicoquímica de leche de cabras al ser suplementadas con dietas que contenían forraje verde hidropónico de maíz. Este estudio se desarrolló en la Comarca Lagunera de Coahuila, México durante los meses de marzo a agosto de 2011. Para la dieta 1 se empleó una relación 85:15 (base seca de alfalfa henificada y forraje verde hidropónico (AH: FVH. La dieta 2 se formuló con una relación 70:30 de AH y FVH, mientras que la dieta testigo tuvo una relación 87.5:12.5 de alfalfa henificada y vaina de mezquite. Se utilizó un diseño en triple cuadro latino. La producción y calidad de leche fueron mayores al suministrar la dieta compuesta con alfalfa henificada y forraje verde hidropónico de maíz al 30%.

  9. Population size, breeding biology and on-land threats of Cape Verde petrel (Pterodroma feae) in Fogo Island, Cape Verde.

    Science.gov (United States)

    Militão, Teresa; Dinis, Herculano Andrade; Zango, Laura; Calabuig, Pascual; Stefan, Laura M; González-Solís, Jacob

    2017-01-01

    Cape Verde petrel (Pterodroma feae) is currently considered near threatened, but little is known about its population size, breeding biology and on land threats, jeopardizing its management and conservation. To improve this situation, we captured, marked and recaptured (CMR) birds using mist-nets over 10 years; measured and sexed them; monitored up to 14 burrows, deployed GPS devices on breeders and analyzed activity data of geolocators retrieved from breeders in Fogo (Cape Verde). We set cat traps over the colony and investigated their domestic/feral origin by marking domestic cats from a nearby village with transponders, by deploying GPS devices on domestic cats and by performing stable isotope analyses of fur of the trapped and domestic cats. The population of Fogo was estimated to be 293 birds, including immatures (95% CI: 233-254, CMR modelling). Based on geolocator activity data and nest monitoring we determined the breeding phenology of this species and we found biometric differences between sexes. While monitoring breeding performance, we verified a still ongoing cat predation and human harvesting. Overall, data gathered from trapped cats without transponder, cats GPS trips and the distinct isotopic values between domestic and trapped cats suggest cats visiting the colony are of feral origin. GPS tracks from breeders showed birds left and returned to the colony using the sector NE of the islands, where high level of public lights should be avoided specially during the fledging period. Main threats for the Cape Verde petrel in the remaining breeding islands are currently unknown but likely to be similar to Fogo, calling for an urgent assessment of population trends and the control of main threats in all Cape Verde Islands and uplisting its conservation status.

  10. Population size, breeding biology and on-land threats of Cape Verde petrel (Pterodroma feae in Fogo Island, Cape Verde.

    Directory of Open Access Journals (Sweden)

    Teresa Militão

    Full Text Available Cape Verde petrel (Pterodroma feae is currently considered near threatened, but little is known about its population size, breeding biology and on land threats, jeopardizing its management and conservation. To improve this situation, we captured, marked and recaptured (CMR birds using mist-nets over 10 years; measured and sexed them; monitored up to 14 burrows, deployed GPS devices on breeders and analyzed activity data of geolocators retrieved from breeders in Fogo (Cape Verde. We set cat traps over the colony and investigated their domestic/feral origin by marking domestic cats from a nearby village with transponders, by deploying GPS devices on domestic cats and by performing stable isotope analyses of fur of the trapped and domestic cats. The population of Fogo was estimated to be 293 birds, including immatures (95% CI: 233-254, CMR modelling. Based on geolocator activity data and nest monitoring we determined the breeding phenology of this species and we found biometric differences between sexes. While monitoring breeding performance, we verified a still ongoing cat predation and human harvesting. Overall, data gathered from trapped cats without transponder, cats GPS trips and the distinct isotopic values between domestic and trapped cats suggest cats visiting the colony are of feral origin. GPS tracks from breeders showed birds left and returned to the colony using the sector NE of the islands, where high level of public lights should be avoided specially during the fledging period. Main threats for the Cape Verde petrel in the remaining breeding islands are currently unknown but likely to be similar to Fogo, calling for an urgent assessment of population trends and the control of main threats in all Cape Verde Islands and uplisting its conservation status.

  11. Analysis of the Solar Resource Information Datasets for Thermal and/or electric Generation Using a Geographical Information System. Cases of Application: Central Cafeteria - University of the Valley, Cali Municipality and Farm {sup P}ozo Verde{sup ,} Jamundi Municipality , Cauca Valley, Colombia; Analisis de las Fuentes de Informacion sobre Recurso Solar para Generacion Termica y/o Electrica Empleando un Sistema de Informacion Geografica. Casos de Aplicacion: Cafeteria Central - Universidad del Valle, Municipio de Cali y Granja {sup P}ozo Verde{sup ,} Municipio de Jamundi, Valle del Cauca, Colombia

    Energy Technology Data Exchange (ETDEWEB)

    Dominguez, J.; Manrique, P. A.; Pinedo, I.

    2009-10-12

    In this report, two examples of renewable energy assessments based on Geographical Information Systems are presented. Several case studies have been carried out in the Valley of Cauca (Colombia), and one on them has been used to size a hybrid system. The results of this particular case study are presented in a second report. The aim of this document is analysing the different sources of data that could be used in the characterization of solar energy for electricity and electricity-heat use. With this purpose, data of two areas in Valley of Cauca obtained from the Atlas of Solar Radiation of Colombia, SWERA project and SSE-NASA have been compared. The data coming from these sources has been analysed using a Geographical Information System, and the conclusions are described along with cartographic and numeric products. These reports are the result of a collaboration established between Universidad del Valle (Colombia) and CIEMAT (Spain), and have been done by the author while his staying at our center included on his PhD program.

  12. Estudio de las principales plagas de insectos chupadores en áreas verdes urbanas de la ciudad de València

    OpenAIRE

    CASTRO ARELLANO, EDISON MANUEL

    2016-01-01

    [ES] Las plagas de insectos chupadores que provocan más daños a las especies vegetales empleadas en áreas verdes urbanas en Valencia son los pulgones (Hemiptera, Aphidoidea) y las psilas (Hemiptera, Psylloidea). Estos insectos provocan daños directos e indirectos en las plantas. Los daños directos son debidos a las picaduras nutricionales que realizan para succionar savia de la planta de la que se alimenta, que provocan un debilitamiento general del árbol afectado. Los daños indirectos se de...

  13. 77 FR 14058 - Santa Teresa Southern Railroad, LLC-Operation Exemption-Rail Line of Verde Logistics Railroad...

    Science.gov (United States)

    2012-03-08

    ... Southern Railroad, LLC--Operation Exemption--Rail Line of Verde Logistics Railroad, LLC at Santa Teresa... notice of exemption under 49 CFR 1150.31 to operate approximately 12,000 feet of rail line owned by Verde Logistics Railroad, LLC (Verde). The rail line extends between a point of connection with Union Pacific...

  14. 76 FR 24064 - Arizona Public Service Company, Palo Verde Nuclear Generating Station, Units 1, 2, and 3, Notice...

    Science.gov (United States)

    2011-04-29

    ... Service Company, Palo Verde Nuclear Generating Station, Units 1, 2, and 3, Notice of Issuance of Renewed... Company (licensee), the operator of the Palo Verde Nuclear Generating Station, Units 1, 2, and 3 (PVNGS... Plants: Supplement 43, Regarding Palo Verde Nuclear Generating Station,'' issued January 2011, discusses...

  15. Deposition and Accumulation of Emerging Contaminants in the Sediments of the Palos Verde Shelf, California

    Science.gov (United States)

    Deposition and Accumulation of Emerging Contaminants in the Sediments of the Palos Verde Shelf, California Mark G. Cantwell, David R. Katz, Julia Sullivan, Robert P. Eganhouse, Monique M. Perron, Robert M. Burgess The Palos Verdes shelf is located off the Southern California coa...

  16. The Cape Verde Islands are home to a small and genetically distinct humpback whale breeding population

    NARCIS (Netherlands)

    Bérubé, Martine; Ryan, Conor; Berrow, Simon D.; Suarez, Pedro Lopez; Monteiro, Vanda; Wenzel, Frederick; Robbins, Jooke; Mattila, David; Vikingsson, G.A.; Øien, Nils; Palsboll, Per

    2013-01-01

    The Cape Verde Islands appear to be winter breeding ground of the smallest humpback whale population yet known. However, it is unclear whether the humpback whales at the Cape Verde Islands interbreed with those in the West Indies. Here we present the results of the genetic analysis of 50 humpback

  17. 76 FR 1197 - Arizona Public Service Company, Palo Verde Nuclear Generating Station; Notice of Availability of...

    Science.gov (United States)

    2011-01-07

    ... NUCLEAR REGULATORY COMMISSION [Docket Nos. 50-528, 50-529, 50-530; NRC-2009-0012] Arizona Public Service Company, Palo Verde Nuclear Generating Station; Notice of Availability of the Final Supplement 43... of operation for the Palo Verde Nuclear Generating Station (PVNGS). Possible alternatives to the...

  18. Cape Verde. A Country Guide Series Report from the AACRAO-AID Project.

    Science.gov (United States)

    Sevigny, Joseph A.

    This report provides information on the education system of Cape Verde, and is designed to assist college admissions officers and registrars in the United States with the admission and placement of students from that country. The report contains general information on the geography, history, and people of Cape Verde, as well as more specific…

  19. Mesa Verde--A Year-Round High School. A Descriptive Report of 1980-81.

    Science.gov (United States)

    Housden, Terry; Holmes, Lynda

    Mesa Verde High School was constructed in 1974 and is the last high school built in the San Juan (California) Unified District. It serves students in grades 9 through 12 and has an open enrollment policy. Mesa Verde operates on a year-round schedule with students divided into three tracks. Basically, each track is in session for 9 weeks and then…

  20. 75 FR 48323 - Agency Information Collection Activities; Proposed Collection; Comment Request; Palos Verdes...

    Science.gov (United States)

    2010-08-10

    ..., quantity, and/or cooking method of fish species, (3) gather quantitative data that can be used to... anglers who fish in the Palos Verdes Shelf vicinity. Title: Palos Verdes Shelf Seafood Consumption Survey... deep for direct human contact; however, fish in the PV Shelf area bioaccumulate the contaminants...

  1. Vías verdes, reutilización de ferrocarriles en desuso para movilidad sostenible, ocio y turismo

    Directory of Open Access Journals (Sweden)

    Aycart Luengo, Carmen

    2001-10-01

    Full Text Available Greenways are autonomous infrastructures destined to the non-motorised traffic, which use linear infrastructures out of service: railway platforms decommissioned and canal or river towpaths. Their specific characteristics like FACILITY, COMFORT, SAFETY and the gentle inclines convert them into wonderful places for walking or riding bicycle, and into accessible spaces for people with limited mobility (children, elderly and disabled people. In Spain there are more than 8.000 km of abandoned railway lines, which are prepared for going through 1.800 km. On the Spanish Greenways Program, coordinated by the Spanish Railways Foundation (FFE and executed by the Ministry for the Environment, Renfe, feve, Regions, Provinces and City Councils, 38 Greenways have already been very well conditioned, adding 950 km of length and some 40 M Euro (6.500 M pta invested. In 1998 the European Greenways Association was born, presided until now by the FFE. At the international leve1 the greatest success has been to receive the United Nations Good Practices Habitat 2000 International Award. The published Greenways Guide (two volumes, where are included 1.800 Greenways km, the web site www.viasverdes.com and the continuous spreading in several media, are a essential part of the promotion labour that is developed by FFE.Las Vías Verdes son infraestructuras autónomas destinadas al tráfico no motorizado, que utilizan infraestructuras lineales fuera de servicio, como las plataformas de ferrocarriles en desuso y los caminos de sirga de canales. Sus intrínsecas cualidades como la FACILIDAD, la COMODIDAD, la SEGURlDAD y la falta de pendientes, las convierten en maravillosos lugares para el paseo, tanto a pie como en bicicleta, y en espacios accesibles para personas con movilidad reducida (niños, ancianos, minusválidos. En España, tenemos más de 8.000 kilómetros de líneas ferroviarias abandonadas, de las cuales pueden ya recorrerse 1.800 km. Dentro del Programa V

  2. Response to IPE and IPEEE results at Palo Verde NGS

    International Nuclear Information System (INIS)

    Lindquist, R.C.

    1992-01-01

    Insights gained from the internal events probabilistic risk assessment (PRA) and from the pilot plant demonstration of the fire-induced vulnerability evaluation (FIVE) have been used to initiate corrective actions in the form of administrative controls, compensatory measures, and plant modifications to reduce the risks associated with significant core-damage sequences. Palo Verde was a pilot demonstration plant for the FIVE methodology developed by the Electrical Power Research Institute and sponsored by the Nuclear Utility Management and Resources Council. Several findings emerged from the application of FIVE and have been acted upon to reduce the impact of fire in several compartments of the plant

  3. El plátano verde en la matriz productiva de la zona 8 de Ecuador.

    Directory of Open Access Journals (Sweden)

    Rubén D. Paz Morales

    2015-11-01

    Full Text Available Ecuador con la Constitución de 2008 sentó las bases para la matriz productiva como nuevo modelo de desarrollo en el Ecuador, y con ello se creó todo un andamiaje de instituciones, reglamentos y créditos de largo plazo que apunten a desarrollar armónicamente las empresas ya existentes y a crear nuevos emprendimientos con el fin de aprovechar la materia prima existente en el país. La creación de las zonas de desarrollo por la SENPLADES fue fundamental para organizar por número de habitantes cada una de ellas. La zona 8 conformada por Guayaquil, Durán y Samborondón, es una de las de mayor dinamismo comercial. El Proyecto IC-ULVR 13-19 presenta una investigación exploratoria sobre los derivados del plátano verde en la matriz productiva, para cuyo fin se aplicó una observación guiada a autoservicios de la zona y una encuesta online para conocer los gustos y preferencias de los consumidores.

  4. EMPRESA VERDE: DIAGNOSTICO DE LA NECESIDAD DE UN MODELO // GREEN COMPANY BREAKDOWN OF NECESSITY OF A MODEL // REPARTIÇÃO DA EMPRESA VERDE DA NECESSIDADE DE UM MODELO

    Directory of Open Access Journals (Sweden)

    Luis Alfonso Pérez

    2016-01-01

    Full Text Available Este artículo tiene como objetivo diagnosticar la necesidad de un modelo de código de ética sostenible o de empresa verde y sensibilizar a los empresarios de las Pymes de la importancia que tiene el integrar en el modelo empresarial al medio ambiente y al desarrollo social en los procesos de negocios y proporcionar herramientas necesarias para que se implemente este enfoque sostenible en las pequeñas y medianas empresa de América Latina. Se desarrolló un trabajo de fuentes primarias de investigación aplicando un cuestionario estructurado a una muestra representativa de los Directivos y Dueños de las Agencias de Viajes de la Asociación Mexicana de Agencias de Viajes (AMAV durante el segundo semestre del 2013, para conocer el alcance del Código de ética bajo un marco de la sostenibilidad y la Responsabilidad Social Empresarial (RSE del día a día de las empresas afiliadas a la AMAV. Los resultados mostraron la urgencia e importancia de implementar el Código de Ética Empresarial para ser más transparentes entre los socios y el desarrollar programas de RSE, lo más pronto posible para poder contribuir con la sociedad y el medio ambiente desde la unidad de todas las empresas afiliadas a la asociación.

  5. SIEMBRA CON LABRANZA TRADICIONAL Y CERO LABRANZA, MEDIANTE LA ADAPTACIÓN DE UNA SEMBRADORA DE CEREALES Y DOS DISTANCIAS ENTRE HILERAS EN CULTIVARES DE FREJOL PARA VERDE Y SECO

    OpenAIRE

    Luchsinger, A; Villa, R; Ocqueteau, G; Suter, F

    2006-01-01

    El objetivo de esta investigación fue la comparación del desarrollo y rendimiento de los cultivares Apolo-Inia (para verde) y Torcaza-Inia (para seco), bajo dos sistemas de labranza del suelo (tradicional y cero) y dos distancias entre hileras (52,5 y 70,0 cm). El estudio se realizó en la Estación Experimental Agronómica Antumapu, de la Facultad de Ciencias Agronómicas de la Universidad de Chile, ubicada en la Comuna de La Pintana, Área Metropolitana, en la temporada 1996/97. Se utilizó una s...

  6. Groundwater arsenic in the Verde Valley in central Arizona, USA

    International Nuclear Information System (INIS)

    Foust, R.D.; Mohapatra, P.; Compton-O'Brien, A.-M.; Reifel, J.

    2004-01-01

    Forty-one water samples were collected and analyzed from throughout the Verde Valley watershed to identify the source of As in well water used for domestic and agricultural purposes. Each water sample was analyzed for anions, cations and trace chemical constituents by atomic absorption spectroscopy, anion chromatography and traditional wet chemical procedures. Arsenic concentrations ranged from 10 to 210 μg/l, with the highest values observed for water pooled on tailings from an abandoned Cu mine. Geostatistical analysis of the data revealed the primary source of As to be groundwater in contact with the Supai and Verde formations, as opposed to runoff from the abandoned mine tailings. Montezuma Well, a collapsed travertine spring, contained the highest levels of naturally occurring As (> 100 μg/l). Arsenic in Montezuma Well water was shown to be 100% arsenate. X-ray absorbance near edge spectra (XANES) of Potomogeton illinoiensis, an endemic plant species of Montezuma Well, demonstrate that As is absorbed as arsenate, reduced to arsenite in the plant and retained as an organic glutathione complex. XANES spectra of Montezuma Well sediments show 4 forms of As present: arsenate (∼54%), As(III)-glutathione complex (∼32%) and an As-organic complex (∼14%) containing dimethylarsinic acid and arsenobetaine. This is the first report of As(III)-glutathione in sediments

  7. Gamma thermometer longevity test: Laguna Verde 2 instruments recent performance

    International Nuclear Information System (INIS)

    Cuevas V, G.; Avila N, A.; Calleros M, G.

    2013-10-01

    This paper is informative of the General Electric Hitachi and Global Nuclear Fuel - Americas are collaboration with Comision Federal de Electricidad in a longevity test of thermocouples as power monitoring devices. The test conclusions will serve for final engineering design in detailing the Automated Fixed In-core Probes for calibration of the Local Power Range Monitors (LPRMs) of the Economic Simplified Boiling Water Reactor. This paper introduces the collaboration description and some recent performance evaluation of the thermocouples that are sensitive to gamma radiation and are known generically as Gamma Thermometers (G T). The G Ts in Laguna Verde 2 are radially located inside six instrumentation tubes in the core and consist of seven thermocouples, four are aligned with the LPRM heights and three are axially located between LPRM heights. The Laguna Verde 2 G T test has become the longest test of thermocouples as power monitoring devices in a BWR industry history and confirms their reliability in terms of time-dependent small noise under steady state reactor conditions and good agreement against Traversing In-core Probes power measurements. (Author)

  8. Gamma thermometer longevity test: Laguna Verde 2 instruments recent performance

    Energy Technology Data Exchange (ETDEWEB)

    Cuevas V, G. [Global Nuclear Fuel, Americas, 3901 Castle Hayne Road, Wilmington, North Carolina (United States); Avila N, A.; Calleros M, G., E-mail: Gabriel.Cuevas-Vivas@gnf.com [Comision Federal de Electricidad, Central Nucleoelectrica Laguna Verda, Carretera Veracruz-Nautla Km 42.5, Alto Lucero, Veracruz (Mexico)

    2013-10-15

    This paper is informative of the General Electric Hitachi and Global Nuclear Fuel - Americas are collaboration with Comision Federal de Electricidad in a longevity test of thermocouples as power monitoring devices. The test conclusions will serve for final engineering design in detailing the Automated Fixed In-core Probes for calibration of the Local Power Range Monitors (LPRMs) of the Economic Simplified Boiling Water Reactor. This paper introduces the collaboration description and some recent performance evaluation of the thermocouples that are sensitive to gamma radiation and are known generically as Gamma Thermometers (G T). The G Ts in Laguna Verde 2 are radially located inside six instrumentation tubes in the core and consist of seven thermocouples, four are aligned with the LPRM heights and three are axially located between LPRM heights. The Laguna Verde 2 G T test has become the longest test of thermocouples as power monitoring devices in a BWR industry history and confirms their reliability in terms of time-dependent small noise under steady state reactor conditions and good agreement against Traversing In-core Probes power measurements. (Author)

  9. Update-processing steam generator cleaning solvent at Palo Verde

    International Nuclear Information System (INIS)

    Peters, G.

    1996-01-01

    Framatome Technologies Inc.(FTI) recently completed the steam generator chemical cleanings at the Palo Verde Nuclear Generating Station Units 1, 2 and 3. Over 500,000 gallons of low-level radioactive solvents were generated during these cleanings and were processed on-site. Chemical cleaning solutions containing high concentrations of organic chelating wastes are difficult to reduce in volume using standard technologies. The process that was ultimately used at Palo Verde involved three distinct processing steps: The evaporation step was conducted using FTI's submerged combustion evaporator (SCE) that has also been successfully used at Arkansas Nuclear One - Unit 1, Three Mile Island - Unit 1, and Oconee on similar waste. The polishing step of the distillate used ultrafiltration (UF) and reverse osmosis (RO) technology that was also used extensively by Ontario Hydro to assist in their processing of chemical cleaning solvent. This technology, equipment, and operations personnel were provided by Zenon Environmental, Inc. The concentrate from the evaporator was absorbed with a special open-quotes peat mossclose quotes based media that allowed it to be shipped and buried at the Environcare of Utah facility. This is the first time that this absorption media or burial site has been used for chemical cleaning solvent

  10. Geotourism, Medical Geology and local development: Cape Verde case study

    Science.gov (United States)

    Rocha, F.; Ferreira da Silva, E.

    2014-11-01

    Geotourism and Geoparks in particular are real opportunities to rural developments promoting the rate decline of unemployment and emigration through engaging the local communities in geopark activities and tourism marketing in the form of adventure tourism, ecotourism, rural tourism and health geotourism. Geotourism is closely linked with Medical Geology. The intake of minerals and chemical elements for food, water, soil (through geophagy) or dust can be accomplished by ingestion, inhalation or dermal absorption. Pelotherapy or “Mudtherapy” is the use of mud/clay for therapeutic applications, internal or external. Cape Verde archipelago is located in Atlantic ocean, 400 km westwards of Senegal coast. Geotourism is being developed, mainly focused on the development of a geopark in Fogo island huge caldera, but also trying to take advantage of their potentialities for Geomedecine. A cooperative program established between Cape Verde University (UCV) and Aveiro University (UA, Portugal) is under way, aiming, on a first stage, to identify Geotouristic potentialities and, on a second stage, to develop products. Geotourism is being developed, mainly focused on the development of a geopark in Fogo isl. huge caldera, but also trying to take advantage of their potentialities for Geomedecine.

  11. Groundwater arsenic in the Verde Valley in central Arizona, USA

    Energy Technology Data Exchange (ETDEWEB)

    Foust, R.D.; Mohapatra, P.; Compton-O' Brien, A.-M.; Reifel, J

    2004-02-01

    Forty-one water samples were collected and analyzed from throughout the Verde Valley watershed to identify the source of As in well water used for domestic and agricultural purposes. Each water sample was analyzed for anions, cations and trace chemical constituents by atomic absorption spectroscopy, anion chromatography and traditional wet chemical procedures. Arsenic concentrations ranged from 10 to 210 {mu}g/l, with the highest values observed for water pooled on tailings from an abandoned Cu mine. Geostatistical analysis of the data revealed the primary source of As to be groundwater in contact with the Supai and Verde formations, as opposed to runoff from the abandoned mine tailings. Montezuma Well, a collapsed travertine spring, contained the highest levels of naturally occurring As (> 100 {mu}g/l). Arsenic in Montezuma Well water was shown to be 100% arsenate. X-ray absorbance near edge spectra (XANES) of Potomogeton illinoiensis, an endemic plant species of Montezuma Well, demonstrate that As is absorbed as arsenate, reduced to arsenite in the plant and retained as an organic glutathione complex. XANES spectra of Montezuma Well sediments show 4 forms of As present: arsenate ({approx}54%), As(III)-glutathione complex ({approx}32%) and an As-organic complex ({approx}14%) containing dimethylarsinic acid and arsenobetaine. This is the first report of As(III)-glutathione in sediments.

  12. “Uma força que atrai”: o significado das drogas para usuários de uma ilha de Cabo Verde “Una fuerza que atrae”: el significado de las drogas para usuarios de una Isla de Cabo Verde “An attractive force”: the meaning of drugs to users from an island in Cape Verde

    Directory of Open Access Journals (Sweden)

    Augusto César Lima Neves

    2010-06-01

    Full Text Available Este estudo teve como objetivo compreender o significado do consumo de drogas na perspectiva de usuários, atendidos em um ambulatório do Serviço da Saúde Mental de uma ilha do arquipélago de Cabo Verde. Dada a natureza do problema, esta investigação utilizou a abordagem qualitativa, tendo como referencial metodológico a Teoria Fundamentada nos Dados, à luz do Interacionismo Simbólico. Participaram do estudo nove usuários de drogas do referido ambulatório. A entrevista gravada e a observação foram as estratégias de obtenção de dados. A análise comparativa dos dados resultou no fenômeno central “uma força que atrai”, expressando a grande dificuldade que os usuários têm para se afastar do consumo abusivo de substâncias psicoativas, sabendo, previamente, que todos os problemas enfrentados nas esferas pessoal, familiar e social advêm da habituação. Este estudo permitiu, assim, identificar pontos vulneráveis de possível atuação da equipe de saúde, visando a prevenção do abuso de drogas.Ese estudio cualitativo tuvo como objetivo comprender el significado del consumo de drogas desde la perspectiva de usuarios atendidos en una clínica del Servicio de Salud Mental de una isla del archipiélago de Cabo Verde. La investigación tuvo como referencial metodológico la Teoría Fundamentada en los Datos, bajo la interpretación del Interaccionismo Simbólico. Participaron del estudio nueve usuarios de drogas de la referida clínica. La grabación de la entrevista y su observación fueron las estrategias para obtener los datos. El análisis comparativo de los datos mostró como resultado el fenómeno central “Una fuerza que atrae”, que expresa la gran dificultad que los usuarios tienen para alejarse del consumo abusivo de substancias psicoactivas, sabiendo, previamente, que todos los problemas enfrentados en las esferas personal, familiar y social provienen de la drogadicción. Este estudio permitió, así, identificar

  13. Plan de desarrollo del CBD de Melbourne, Australia

    OpenAIRE

    MAICAS BELTRÁN, TOMÁS

    2015-01-01

    El proyecto se desarrolla en una parcela del CBD (Central Business District) de Melbourne. Se plantea como objetivo la planificación urbana y la repoblación del CBD, y se consideran una serie de aspectos relacionados con el desarrollo sostenible. El programa incluye el desarrollo de zonas verdes, edificación vertical, espacios comerciales, culturales y de ocio, oficinas, hoteles y zona residencial. El desarrollo del proyecto comienza con la creación de las calles. Tras crear la edificación qu...

  14. The Patagonian Orocline: Paleomagnetic evidence of a large counter-clockwise rotation during the closure of the Rocas Verdes basin.

    Science.gov (United States)

    Poblete, Fernando; Roperch, Pierrick; Herve, Francisco; Ramirez, Cristobal; Arriagada, Cesar

    2014-05-01

    The southernmost Andes of Patagonia and Tierra del Fuego present a prominent arc-shaped structure, the Patagonian Orocline. Despite the fact that this major structure was already described by Alfred Wegener in his famous textbook in 1929, few paleomagnetic studies have been attempted to describe the rotations associated with the formation of the Patagonian Orocline. In this study we present a paleomagnetic and anisotropy of magnetic susceptibility (AMS) study from more than 130 sites obtained from the Ultima Esperanza region (NS structures at ~51°S) to Península Hardy, south of the Beagle Channel at ~55°S. 45 sites were sampled in early-cretaceous gabbros (gabbro complex), mid-cretaceous tonalites and granodiorites (Canal Beagle group) and Paleocene intrusive rocks (Seno Año Nuevo group) from the South Patagonian batholith, 4 sites from the late Jurassic Hardy formation, a volcanic succession outcropping in Hardy Peninsula and Stewart Island, 9 sites were drilled in the lower cretaceous sedimentary infill of the Rocas Verdes Basin, 3 sites from the Tortuga ophiolite, a quasi-oceanic crust related to the opening of the Rocas Verdes basin. 80 sites were sampled in Cretaceous to Miocene sedimentary rocks from the Magallanes fold and thrust belt and Magallanes Basin. Characteristic Remanent Magnetizations (ChRMs) obtained from the Rocas Verdes Basin tectonic province correspond to secondary magnetizations postdating the early phase of folding. Pyrrhotite is the main magnetic carrier in some of these sites. ChRMs from the South Patagonian Batholith correspond to a primary magnetization. These rocks record about 90° counterclockwise rotations south of the Beagle channel. Few sites from sediments of the Magallanes fold and thrust belt have stable ChRM. The available paleomagnetic results show that no rotation has occurred in the Provincia of Ultima Esperanza (51.5°S), at least, for the last 60 Ma. In the southern part of Provincia de Magallanes and Tierra del Fuego

  15. Start-up and commercial operation of the Laguna Verde power plants, unit 1

    International Nuclear Information System (INIS)

    Torres R, J.F.

    1991-01-01

    The main features of the unit 1 of the Laguna Verde Power Plant is presented as well as the phases of the start-up process. The process includes various steps and tests up to start the commercial operation. (author)

  16. Options for In Situ Capping of Palos Verdes Shelf Contaminated Sediments

    National Research Council Canada - National Science Library

    Palermo, Michael; Schroeder, Paul; Rivera, Yilda; Ruiz, Carlos; Clarke, Doug; Gailani, Joe; Clausner, James; Hynes, Mary; Fredette, Thomas; Tardy, Barbara

    1999-01-01

    The U.S. Army Engineer Waterways Experiment Station (WES) has performed an evaluation of in situ capping options for sediment restoration of DDT and PCB contaminated sediments on the Palos Verdes (PV...

  17. NPDES Permit for Mesa Verde National Park Water Treatment Plant in Colorado

    Science.gov (United States)

    Under NPDES permit number CO-0034462, the United States Department of the Interior, National Park Service is authorized to discharge from the Mesa Verde National Park water treatment plant, in Montezuma County, Colo.

  18. Effects of past and future groundwater development on the hydrologic system of Verde Valley, Arizona

    Science.gov (United States)

    Garner, Bradley D.; Pool, D.R.

    2013-01-01

    Communities in central Arizona’s Verde Valley must manage limited water supplies in the face of rapidly growing populations. Developing groundwater resources to meet human needs has raised questions about the effects of groundwater withdrawals by pumping on the area’s rivers and streams, particularly the Verde River. U.S. Geological Survey hydrologists used a regional groundwater flow model to simulate the effects of groundwater pumping on streamflow in the Verde River. The study found that streamflow in the Verde River between 1910 and 2005 had been reduced as the result of streamflow depletion by groundwater pumping, also known as capture. Additionally, using three hypothetical scenarios for a period from 2005 to 2110, the study’s findings suggest that streamflow reductions will continue and may increase in the future.

  19. The role of eclogite in the mantle heterogeneity at Cape Verde

    DEFF Research Database (Denmark)

    Barker, Abigail Katrine; Holm, Paul Martin; Troll, Valentin R.

    2014-01-01

    The Cape Verde hotspot, like many other Ocean Island Basalt provinces, demonstrates isotopic heterogeneity on a 100–200 km scale. The heterogeneity is represented by the appearance of an EM1-like component at several of the southern islands and with a HIMU-like component present throughout...... have been limited. We apply the minor elements in olivine approach (Sobolev et al. in Nature 434:590–597, 2005; Science, doi:10.1126/science.1138113, 2007), to determine and quantify the contributions of peridotite, pyroxenite and eclogite melts to the mantle heterogeneity observed at Cape Verde. Cores...... of olivine phenocrysts of the Cape Verde volcanics have low Mn/FeO and low Ni*FeO/MgO that deviate from the negative trend of the global array. The global array is defined by mixing between peridotite and pyroxenite, whereas the Cape Verde volcanics indicate contribution of an additional eclogite source...

  20. New species of Rissoidae from the Cape Verde Islands (Mollusca: Gastropoda) Part 1

    OpenAIRE

    Moolenbeek, R.G.; Rolán, E.

    1988-01-01

    Sediment samples collected at the Cape Verde Islands contained many interesting micromolluscs. Amongst them, four new species of the family Rissoidae ( Alvania peli, A. nicolauensis, A. stocki and A. planciusi).

  1. Search for neutrino oscillations at the palo verde nuclear reactors

    Science.gov (United States)

    Boehm; Busenitz; Cook; Gratta; Henrikson; Kornis; Lawrence; Lee; McKinny; Miller; Novikov; Piepke; Ritchie; Tracy; Vogel; Wang; Wolf

    2000-04-24

    We report on the initial results from a measurement of the antineutrino flux and spectrum at a distance of about 800 m from the three reactors of the Palo Verde Nuclear Generating Station using a segmented gadolinium-loaded scintillation detector. We find that the antineutrino flux agrees with that predicted in the absence of oscillations excluding at 90% C.L. nu;(e)-nu;(x) oscillations with Deltam(2)>1.12x10(-3) eV(2) for maximal mixing and sin (2)2straight theta>0.21 for large Deltam(2). Our results support the conclusion that the atmospheric neutrino oscillations observed by Super-Kamiokande do not involve nu(e).

  2. Laguna Verde simulator: A new TRAC-RT based application

    International Nuclear Information System (INIS)

    Munoz Cases, J.J.; Tanarro Onrubia, A.

    2006-01-01

    In a partnership with GSE Systems, TECNATOM is developing a full scope training simulator for Laguna Verde Unit 2 (LV2). The simulator design is based upon the current 'state-of-the art technology' regarding the simulation platform, instructor station, visualization tools, advanced thermalhydraulics and neutronics models, I/O systems and automated model building technology. When completed, LV2 simulator will achieve a remarkable level of modeling fidelity by using TECNATOM's TRAC-RT advanced thermalhydraulic code for the reactor coolant and main steam systems, and NEMO neutronic model for the reactor core calculations. These models have been utilized up to date for the development or upgrading of nine NPP simulators in Spain and abroad, with more than 8000 hours of training sessions, and have developed an excellent reputation for its robustness and high fidelity. (author)

  3. Techos verdes: una alternativa ecológica

    Directory of Open Access Journals (Sweden)

    Maureen Trebilcock Kelly

    2001-06-01

    Full Text Available Es un hecho que estamos pavimentando nuestro Planeta. Durante el siglo XX, hemos construido aceleradamente ciudades y carreteras, cubriendo y destruyendo, en este proceso, nuestra tierra. Este hecho es más evidente en las áreas urbanas, que aparecen sobrepavimentadas, donde la vegetación cubre apenas un tercio de la superficie, comparado con un 75 a 95% de las áreas rurales. En Chile, las áreas urbanas crecen sin límite aparente, especialmente nuestra capital, con escasez de áreas verdes y con un alarmante aumento en los niveles de contaminación atmosférica y acústica.

  4. Radiological protection in Laguna Verde, the challenge of being better

    International Nuclear Information System (INIS)

    Serrano R, H.

    2008-01-01

    The operation of the nuclear power plants in the last decade is based on the application of standard directed towards the excellence. The nuclear power plant of Laguna Verde (CNLV), is not the exception and in the 18 years of commercial operation, the safety culture has matured in the personnel. Standard and political implemented like in the control of dosimeter alarms, equipment condition, meetings pre-work, the practice of protection to the systems and the fuel, as well as the order and the cleaning have distinguished to the CNLV with other power stations. The sense of property of the personnel towards its work is fundamental for the achievement of results. It is reason for the present work to show since it has been gotten to obtain results directed to the excellence in the activities or of normal operation and recharge, where the security is the principle priority. (Author)

  5. Developing and modeling of the 'Laguna Verde' BWR CRDA benchmark

    International Nuclear Information System (INIS)

    Solis-Rodarte, J.; Fu, H.; Ivanov, K.N.; Matsui, Y.; Hotta, A.

    2002-01-01

    Reactivity initiated accidents (RIA) and design basis transients are one of the most important aspects related to nuclear power reactor safety. These events are re-evaluated whenever core alterations (modifications) are made as part of the nuclear safety analysis performed to a new design. These modifications usually include, but are not limited to, power upgrades, longer cycles, new fuel assembly and control rod designs, etc. The results obtained are compared with pre-established bounding analysis values to see if the new core design fulfills the requirements of safety constraints imposed on the design. The control rod drop accident (CRDA) is the design basis transient for the reactivity events of BWR technology. The CRDA is a very localized event depending on the control rod insertion position and the fuel assemblies surrounding the control rod falling from the core. A numerical benchmark was developed based on the CRDA RIA design basis accident to further asses the performance of coupled 3D neutron kinetics/thermal-hydraulics codes. The CRDA in a BWR is a mostly neutronic driven event. This benchmark is based on a real operating nuclear power plant - unit 1 of the Laguna Verde (LV1) nuclear power plant (NPP). The definition of the benchmark is presented briefly together with the benchmark specifications. Some of the cross-sections were modified in order to make the maximum control rod worth greater than one dollar. The transient is initiated at steady-state by dropping the control rod with maximum worth at full speed. The 'Laguna Verde' (LV1) BWR CRDA transient benchmark is calculated using two coupled codes: TRAC-BF1/NEM and TRAC-BF1/ENTREE. Neutron kinetics and thermal hydraulics models were developed for both codes. Comparison of the obtained results is presented along with some discussion of the sensitivity of results to some modeling assumptions

  6. Palo Verde Generating Station, Units 4 and 5. License application, general information

    International Nuclear Information System (INIS)

    1978-01-01

    A license application for two more Palo Verde reactors, Units 4 and 5, is presented. The two PWR reactors have a nominal net generating power each of 1,270 MW(e). Containments are steel-lined prestressed cylindrical structures with hemispherical domes. The reactors are replicas of Palo Verde 1, 2 and 3 (see DOCKETS 50528, 50529 and 50530) using the standard Combustion Engineering System 80 (see DOCKET-STN-50470)

  7. Zoanthids of the Cape Verde Islands and their symbionts: previously unexamined diversity in the Northeastern Atlantic

    OpenAIRE

    Reimer, J.D.; Hirose, M.; Wirtz, P.

    2010-01-01

    The marine invertebrate fauna of the Cape Verde Islands contains many endemic species due to their isolated location in the eastern Atlantic, yet research has not been conducted on most taxa here. One such group are the zoanthids or mat anemones, an order of benthic cnidarians (Hexacorallia: Zoantharia) common in many marine environments. In this study, the diversity of zoanthids in the Cape Verde Islands is specifically examined for the first time. Field images and sampling are combined with...

  8. Estudo prospectivo, duplo cego e cruzado da Camellia sinensis (chá verde nas dislipidemias Estudio prospectivo, doble ciego y cruzado de la Camellia sinensis (té verde en las dislipidemias Prospective double-blind crossover study of Camellia sinensis (green tea in dyslipidemias

    Directory of Open Access Journals (Sweden)

    Gesiani de Almeida Pierin Batista

    2009-08-01

    aterosclerótica. OBJETIVO: Investigar los efectos delverde (Camellia sinensis en pacientes portadores de dislipidemias. MÉTODOS: El estudio implicó a 33 pacientes, con edad entre 21 y 71 años, que consumían una dieta con bajo tenor graso (el 25% al 35% de las calorías totales y 200mg de colesterol por día. Se randomizaron para dos tratamientos secuenciales: cápsulas conteniendo 250mg de extracto seco delverde o placebo, administradas por un período total de 16 semanas, habiendo cada paciente utilizado té verde (Camellia sinensis por ocho semanas y placebo en igual período. RESULTADOS: Los valores lipídicos basales (mg/dl fueron los siguientes: HDL-colesterol 60,7 ± 7,3; colesterol total 255 ± 30,9; LDL-colesterol 158,8 ± 29,0; triglicéridos 169,0 ± 61,3 y Apo-B 120,2 ± 18,9. Las variaciones lipídicas promedios, provocadas por el uso delverde (Camellia sinensis, evidenciaron una reducción de un 3,9 % (p = 0,006 en las concentraciones del colesterol total y una reducción de un 4,5 % (p = 0,026 del LDL-colesterol. La ingestión de té verde no influenció significativamente los niveles de HDL-colesterol, de los triglicéridos y de la Apo-B. Resultados no significativos se observaron en la evaluación de los lípidos sanguíneos (colesterol total y LDL-colesterol con el empleo del placebo. CONCLUSIÓN: Se evidenció el efecto benéfico delverde (Camellia sinensis, que redujo significativamente, en ocho semanas, los niveles de colesterol total y LDL-colesterol en ese grupo de pacientes.BACKGROUND: Epidemiological studies have established an association between dyslipidemias and atherosclerosis. Nutritional therapy is a key point in the prevention strategy for individuals who present with risk factors for atherosclerotic disease. OBJECTIVES: To investigate the effects of green tea (Camellia sinensis in patients with dyslipidemias. METHODS: The study included 33 patients aged between 21 and 71 years who had a low-fat diet (25-35% of total

  9. Talla de captura y reproducción de la langosta verde Panulirus gracilis (Decapoda: Palinuridae en la costa de Manabí, Ecuador

    Directory of Open Access Journals (Sweden)

    Juan Figueroa

    2013-09-01

    Full Text Available La langosta verde Panulirus gracilis es un recurso de gran importancia económica para las poblaciones pesqueras de la costa continental del Ecuador. Esta especie es capturada tradicionalmente mediante redes y buceo semiautónomo (hookah. Para analizar algunos aspectos biológicos de la pesquería en la provincia de Manabí, se examinó la talla de captura (longitud cefalotorácica: LC y abdominal: LA, proporción sexual y aspectos reproductivos en hembras (n=415 de 703 especímenes entre junio y septiembre 2010: con red en El Mangle-Puerto Cayo (costa central, profundidad: 3-6m, y mediante buceo en Puerto López-Salango (costa centro-sur, profundidad: 7-12m. La proporción sexual: machos a hembras fue 0.72:1 para captura con red y 0.63:1 para buceo. Las langostas capturadas con buceo fueron más grandes (84.1±3.3mm LC que las capturadas con red (73.4±2.9mm LC. La proporción de hembras ovígeras capturadas con buceo fue mayor que en las capturas con red. La diferencia entre talla y ocurrencia de hembras ovígeras podría relacionarse con la profundidad a la que los métodos de captura fueron utilizados. El 98% de las langostas analizadas estuvieron por debajo de la talla legal. Se propone el establecimiento de un programa de evaluación continua del recurso durante la temporada de pesca y veda para conocer la fluctuación natural del tamaño y época reproductiva de la langosta verde en Manabí.

  10. Is a changing climate affecting the tropical cyclone behavior of Cape Verde?

    Science.gov (United States)

    Emmenegger, T. W.; Mann, M. E.; Evans, J. L.

    2016-12-01

    An existing dataset of synthetic tropical cyclone (TC) tracks derived from climate change simulations were used to explore TC variability within a 250 km radius of the Cape Verde Islands (16.5388N, 23.0418W). The synthetic sets were examined according to genesis point location, track projection, intensity, frequency, and seasonality within the observational era (1851 AD to present). These factors of TC variability have been shown to be strongly related to climate oscillations, thus the historical era was grouped by the increasing and decreasing regimes of sea surface temperature (SST) in the main development region (MDR) of the Atlantic Ocean. Numerous studies have examined Atlantic Basin activity throughout this era; the goal of this study is to investigate possible variations in TC behavior around Cape Verde, ultimately determining whether Cape Verde experiences similar fluctuations in activity as observed basin-wide. We find that several facets of TC variability such as intensity, seasonality, and genesis point location around Cape Verde are not significantly different to that of the entire basin, thus forecasts of the entire basin in these respects may also apply to our site. A long-term trend of increasing TC frequency can be identified basin-wide within the observed set, yet activity around Cape Verde does not display this same behavior observably or in any synthetic set. A relationship between the location of genesis points and the regimes of SST fluctuation is shown to be existent. We find both more observed and synthetic genesis points within the vicinity of Cape Verde during cool periods, and an eastward and equatorward shift in cyclogenesis is evident during warm regimes. This southeastern shift in genesis points attributes to the increased intensities of TCs seen during periods of warmer SST. Years of increased SST are additionally linked to an earlier seasonality in Cape Verde.

  11. HLA polymorphisms in Cabo Verde and Guiné-Bissau inferred from sequence-based typing.

    Science.gov (United States)

    Spínola, Hélder; Bruges-Armas, Jácome; Middleton, Derek; Brehm, António

    2005-10-01

    Human leukocyte antigen (HLA)-A, -B, and -DRB1 polymorphisms were examined in the Cabo Verde and Guiné-Bissau populations. The data were obtained at high-resolution level, using sequence-based typing. The most frequent alleles in each locus was: A*020101 (16.7% in Guiné-Bissau and 13.5% in Cabo Verde), B*350101 (14.4% in Guiné-Bissau and 13.2% in Cabo Verde), DRB1*1304 (19.6% in Guiné-Bissau), and DRB1*1101 (10.1% in Cabo Verde). The predominant three loci haplotype in Guiné-Bissau was A*2301-B*1503-DRB1*1101 (4.6%) and in Cabo Verde was A*3002-B*350101-DRB1*1001 (2.8%), exclusive to northwestern islands (5.6%) and absent in Guiné-Bissau. The present study corroborates historic sources and other genetic studies that say Cabo Verde were populated not only by Africans but also by Europeans. Haplotypes and dendrogram analysis shows a Caucasian genetic influence in today's gene pool of Cabo Verdeans. Haplotypes and allele frequencies present a differential distribution between southeastern and northwestern Cabo Verde islands, which could be the result of different genetic influences, founder effect, or bottlenecks. Dendrograms and principal coordinates analysis show that Guineans are more similar to North Africans than other HLA-studied sub-Saharans, probably from ancient and recent genetic contacts with other peoples, namely East Africans.

  12. O verde produtivo na AMP no horizonte 2020

    Directory of Open Access Journals (Sweden)

    Hélder Marques

    2015-06-01

    Full Text Available Pensar a forma como se estruturará o verde produtivo na Área Metropolitana do Porto, num corte temporal que se fecha no horizonte 2020, implica não só um diagnóstico do que ele é, mas também, e sobretudo, a capacidade de compreender as principais alterações em curso, procurando distinguir as que são, ou parecem ser, meramente conjunturais, daquelas que, uma vez instaladas, têm capacidade suficiente para serem determinantes no curto e médio prazo. Depois é necessário estabelecer, em conformidade, os principais objetivos a atingir a partir dos desígnios das políticas públicas consensualizadas, ou seja, quais são os valores de largo espectro a atingir, neste caso a sustentabilidade dos sistemas produtivos, a adequação ambiental e paisagística, a que acresce a criação de valor. São também observadas as condicionantes, até porque o complexo agroflorestal é talvez aquele que, no domínio dos sistemas produtivos de criação de valor, está mais condicionado por decisões que são estranhas à nossa soberania, quer se trate da administração central ou local, quanto mais não fosse porque as políticas de incentivos e preços são essencialmente determinadas pela PAC. Passa-se, depois, a uma caracterização de síntese, recorrendo a um conjunto de indicadores, os quais, uma vez agregados em diferentes variáveis, permitem um maior poder heurístico. Fecha-se com um esboço e tipificação do modelo territorial expectável no curto prazo, assim como dos principais sistemas produtivos que lhe estão associados. Nesse sentido, foram definidos quatro macro territórios, a saber: i -Territórios de “interdição”; ii - Territórios de “renaturalização”; iii - Novos territórios de amenidade e dominância do verde produtivo; iv - Territórios de dominância das fileiras produtivas intensivas.

  13. Chuva de sementes em remanescentes florestais de Campo Verde, MT

    Directory of Open Access Journals (Sweden)

    William Pietro-Souza

    2014-08-01

    Full Text Available O objetivo deste trabalho consistiu em avaliar sazonalmente a produção de sementes provenientes de fragmentos florestais presentes na zona rural de Campo Verde, MT. Essa caracterização ocorreu em termos de produção de sementes e riqueza de espécies vegetais. Foram selecionados três fragmentos florestais caracterizados como Floresta Estacional Semidecidual. Em cada fragmento, cinco coletores foram instalados e confeccionados com canos de PVC (1 m²; malha de náilon de 0,001 m e 0,15 m de profundidade do bojo. O material foi coletado mensalmente, cujas sementes foram quantificadas e separadas conforme a síndrome de dispersão, etapa sucessional e forma de vida. Houve a determinação da densidade, frequência absoluta, índice de diversidade e equitabilidade. Ao todo, foram obtidas 3.622 sementes, pertencentes a 74 táxons. Maiores densidades de sementes foram observadas durante os meses de setembro, outubro e novembro. As lianas Gouania sp., Fridericia speciosa, Heteropterys sp. e Distictella sp. responderam com 55,95% do total de sementes aportadas. Das espécies que compuseram a chuva de sementes, 74% não são dispersas pelo vento. Todavia, quando se verificou a quantidade de diásporos coletados, formas dispersas pelo vento foram predominantes, representando 76% do total. Citam-se como táxons arbóreos importantes para a recomposição florestal na região de Campo Verde, situada no Sudeste de Mato Grosso: Tachigali rubiginosa, Siparuna guianensis, Nectandra sp., Cordia alliodora, Alibertia sp., Terminalia brasiliensis e Myrcia sp. Essas espécies devem ser alvo de estudos mais específicos relacionados ao seu potencial para recuperação de ambientes degradados, considerando-se as Áreas de Preservação Permanente e Reservas Legais.

  14. Caracterización del lixiviado agroecológico a partir de residuos orgánicos de cultivos

    Directory of Open Access Journals (Sweden)

    Carlos Arturo Granada Torres

    2015-12-01

    Full Text Available Los abonos orgánicos desde tiempos remotos se han trabajado de diferentes maneras, algunossin ningún tipo de control y manejo adecuado, aun así, son utilizados para conservar y mejorar las condiciones fisicoquímicas y biológicas de los suelos. Los abonos orgánicos proceden de la transformación de residuos orgánicos de origen vegetal y/o animal que generan subproductos como lixiviados, los cuales se convierten en un problema de contaminación al no tener en cuentasu captación como líquidos residuales, ya que una parte se filtra deteriorando y contaminando suelos, aguas libres, aguas subterráneas y otra parte queda expuesta en la superficie ocasionando desprendimiento de CO2 hacia la atmósfera, lo cual acelera el efecto invernadero. Este artículo de investigación pretende determinar el manejo actual de residuos orgánicos de fincas dedicadas a la producción agroecológica y caracterizar la composición de estos lixiviados, a diferencia de los residuos líquidos extraídos del compost convencional. Se analizaron en laboratorio muestras de lixiviados de los dos tipos de compost, con el fin de relacionar los parámetros fisicoquímicos y microbiológicos. Los resultados muestran que el lixiviado agroecológico presenta un mayor índice y diversidad de comunidades microbiológicas. Con relación a las características fisicoquímicas hay mayor concentración de nutrientes y metales pesados en el lixiviado convencional, por lo cual se recomienda evaluarlos antes de su aplicación en campo.

  15. El "lavado verde" en la comunicación gráfica de la publicidad de condominios residenciales en Caruaru-Pernambuco

    Directory of Open Access Journals (Sweden)

    Tamires Maria de Lima Silva

    2014-03-01

    Full Text Available Introdución: El término lavado verde (greenwashing se utiliza para nombrar el modo de comunicación desarrollado por empresarios para tratar de ocultar las verdades que impregnan sus productos y servicios, lo que puede indicar su débil compromiso con el medio ambiente. El objetivo de esa investigación fue el análisis de los atributos gráficos y textuales que figuran en los materiales publicitarios relacionados con comunidades residenciales en el municipio de Caruaru, Pernambuco, los cuales afirmaban tener aspectos "sostenibles". El análisis se ha centrado en entender en qué medida las prácticas de lavado verde podrían ser identificadas en este segmento de mercado. Método: Se realizó un estudio de campo entre enero y marzo de 2012 en los puntos de venta de las propiedades inmobiliarias de aquellos proyectos complementada por el estudio de las campañas de publicidad. Información adicional fue adquirida por conversaciones informales con los intermediarios y otras personas responsables de las acciones de marketing. Complementarmente se verificaron materiales de promoción tales como sitios web, folletos, catálogos, carteles y los stands de comercio. Resultados: Todos los proyectos examinados tenían algún grado de lavado verde en lo que respecta lo establecido en el documento denominado de "seis pecados del lavado verde", y el artículo 36 de la CONAR En cuanto a la infracción de la autenticidad en los medios de publicidad. Conclusión: Caruaru, por su crecimiento exponencial, atrajo empresas atrajo de distintos sectores empresariales. Sin embargo, se insta a repensar como se forman nuevas perspectivas y conceptos de vida y sostenibilidad a partir de desarrollo de acciones reales y transparentes y que cumplan con todos los grupos de interés de la ciudad.

  16. Aislamiento de algas del embalse del Neusa por medio de cultivos In Vitro

    Directory of Open Access Journals (Sweden)

    A. Maldonado

    2000-07-01

    Full Text Available EI cultivo de algas a nivel mundial es un oficio de vieja data, pero en Colombia se encuentra en sus primeras etapas de desarrollo. El presente trabajo desarrollado en el Laboratorio de Bioensayos, Departamento de Biología, Universidad Nacional de Colombia está encaminado a aportar técnicas en el desarrollo del cultivo de algas. En la parte practica del trabajo se utilizaron muestras de agua del embalse del Neusa las cuales se cultivaron en medios líquido y solido. Se observo un mejor crecimiento de cianofíceas filamentosas en medio solido y algas verdes en medio líquido. Las clamidomonas se ven favorecidas en ambos medios, hecho que permitió aislar una sepa pura de este tipo de algas. Las diatorneas por el hecho de crecer en relación con algas verdes generan un problema metodológico para su aislamiento, que aun se encuentra sin resolver.

  17. The geology of Pedra Verde region, Ceara, Brazil

    International Nuclear Information System (INIS)

    Korpershoek, H.R.; Mendonca, J.A.C. de; Torquato, J.R.

    1979-01-01

    The upper Proterozoic Mambira Formation (≥ 1.1000 m.y.) consists of > 1000 m of micaschists with subordinate quartzites and limestones, its upper part, the ''Pedra Verde Phyllite'', is composed of phyelitic slump breccias, with abundance of pyrite. The Mambira formation crops out in the west flank of the tope Anticline, formed by ∼ 600 m of quartzites with sillimanite and/or andalusite (Sao Joaquim Formation), underlain by granitoid gneisses, representing the amphibolite facies. The contact between the Sao Joaquim and Mabira Formations appears to be tectonic. The folding and the metamorphism of the latter date from the Brazilian Cycle, which also affected the gneisses, causing homogeneization of the whole-rock K/Ar ages around 500 m.y. After erosion of some 10.000 m of sedimentary re-activation of the faults, which may already have formed during the deposition of the Mambira Formation resulted in the development of the Ubari Graben. The above formations are unconformably overlain by 300-350 m of subhorizontal Shallow-Marine sandstones belonging to the Serra Grande Formation, of upper silurian to lower devonian ages [pt

  18. Analysis of the stability of events occurred in Laguna Verde

    International Nuclear Information System (INIS)

    Castillo D, R.; Ortiz V, J.; Calleros M, G.

    2005-01-01

    The new fuel designs for operation cycles more long have regions of uncertainty bigger that those of the old fuels, and therefore, they can have oscillations of power when an event is presented that causes that the reactor operates to high power and low flow of coolant. During the start up of the reactor there are continued procedures that avoid that oscillations are presented with that which makes sure the stable behavior of the reactor. However, when the reactor is operating to nominal conditions and they are shot or they are transferred to low speed the recirculation pumps, it cannot make sure that the reactor doesn't present oscillations of power when entering to the restricted operation regions. The methods of stability analysis commonly use signs of neutronic noise that require to be stationary, but after a transitory one where they commonly get lost the recirculation pumps the signs they don't have the required characteristics, for what they are used with certain level of uncertainty by the limited validity of the models. In this work the Prony method is used to determine the reactor stability, starting from signs of transitory and it is compared with autoregressive models. Four events are analyzed happened in the Laguna Verde power plant where the reactor was in the area of high power and low flow of coolant, giving satisfactory results. (Author)

  19. Palo Verde nuclear generating station EASEplus SIMULATE model

    International Nuclear Information System (INIS)

    McDonald, W.F.; Reed, M.L.; Fauste, J.L.

    1992-01-01

    The Palo Verde on-site reactor engineers have an extremely powerful and accurate tool for quickly predicting the effects of reactor power maneuvers on core axial shape index (ASI) and xenon worth. They can analyze postulated future power maneuvers quickly and supply the reactor operators with valuable predictions without having to consult with the off-site nuclear analysis group. The tool developed by the nuclear analysis group was an advanced nodal code with a graphic user interface (GUI) driver for ease of use. The advanced nodal code used was the Studsvik of America SIMULATE-3 Version 2.20-DSI. This SIMULATE version was compiled for use on a personal computer (PC) with a Definicon Systems' 50-MHz coprocessor board. The GUI face used was Expert-EASE Systems' EASE+SIM3 Version 3.0 pre-/postprocessor. The system was installed on Compaq Deskpro 386/20e PCs located in the control room of each of the three units, in the reactor engineering office, in the nuclear analysis office, and in the control room of the training simulator

  20. Dating the magmatism of Maio, Cape Verde Islands

    Energy Technology Data Exchange (ETDEWEB)

    Mitchell, J G [Newcastle upon Tyne Univ. (UK). School of Physics; Le Bas, M J [Leicester Univ. (UK). Dept. of Geology; Furnes, H [Bergen Univ. (Norway). Geologisk Inst.

    1983-07-01

    Conventional K-Ar and /sup 40/Ar//sup 39/Ar studies of Mesozoic ocean floor basalts and Tertiary plutonic and volcanic rocks from Maio, Cape Verde Islands, have been determined to elucidate the magmatic evolution of this ocean island. Pillow lavas of the Basement Complex yield a minimum age of 113 +- 8 Ma though thermal overprinting of their formation age by the younger Central Intrusive Complex (CIC) and subsequent sheet intrusions is in some cases almost total. Activity in the CIC began before 20 Ma and plutons continued to develop until about 8 Ma, the youngest ages possibly indicating a cooling history of more than 2 Ma for these bodies relative to their volcanic counterparts. Sheet intrusion occurred throughout the period 20 to 9 Ma though the peak of this activity probably occurred 11 Ma ago. Field relations allow the time of thrusting(s) on the Monte Branco Thrust to be bracketed between 9 and 7 Ma. Volcanic activity began in the Tertiary, probably before 12 Ma, and culminated in the development of a stratovolcano at 7 Ma.

  1. Severe Accident Simulation of the Laguna Verde Nuclear Power Plant

    Directory of Open Access Journals (Sweden)

    Gilberto Espinosa-Paredes

    2012-01-01

    Full Text Available The loss-of-coolant accident (LOCA simulation in the boiling water reactor (BWR of Laguna Verde Nuclear Power Plant (LVNPP at 105% of rated power is analyzed in this work. The LVNPP model was developed using RELAP/SCDAPSIM code. The lack of cooling water after the LOCA gets to the LVNPP to melting of the core that exceeds the design basis of the nuclear power plant (NPP sufficiently to cause failure of structures, materials, and systems that are needed to ensure proper cooling of the reactor core by normal means. Faced with a severe accident, the first response is to maintain the reactor core cooling by any means available, but in order to carry out such an attempt is necessary to understand fully the progression of core damage, since such action has effects that may be decisive in accident progression. The simulation considers a LOCA in the recirculation loop of the reactor with and without cooling water injection. During the progression of core damage, we analyze the cooling water injection at different times and the results show that there are significant differences in the level of core damage and hydrogen production, among other variables analyzed such as maximum surface temperature, fission products released, and debris bed height.

  2. Validation of SIMULATE-3K for stability analysis of Laguna Verde nuclear plant

    Energy Technology Data Exchange (ETDEWEB)

    Castillo, Rogelio, E-mail: rogelio.castillo@inin.gob.mx [Instituto Nacional de Investigaciones Nucleares, Carretera México-Toluca s/n, La Marquesa, Ocoyoacac, Estado de México 52750 (Mexico); Alonso, Gustavo, E-mail: gustavo.alonso@inin.gob.mx [Instituto Nacional de Investigaciones Nucleares, Carretera México-Toluca s/n, La Marquesa, Ocoyoacac, Estado de México 52750 (Mexico); Instituto Politecnico Nacional, Unidad Profesional Adolfo Lopez Mateos, Ed. 9, Lindavista, D.F. 07300 (Mexico); Ramírez, J. Ramón, E-mail: ramon.ramirez@inin.gob.mx [Instituto Nacional de Investigaciones Nucleares, Carretera México-Toluca s/n, La Marquesa, Ocoyoacac, Estado de México 52750 (Mexico)

    2013-12-15

    Highlights: • Neutronic/thermal hydraulic event in Laguna Verde is modeled. • A good agreement is obtained between SIMULATE-3K results and data plant for frequency and DR. • Other noise analysis techniques are used for the same purpose with good agreement. • Validation of SIMULATE-3K for stability analysis of Laguna Verde is confirmed - Abstract: Boiling Water Reactors are two phase flow systems which are susceptible to different types of flow instabilities. Among these are the coupled neutronic/thermal-hydraulic instabilities, these may compromise established fuel safety limits. These instabilities are characterized by periodic core-power and hydraulic oscillations. SIMULATE-3K code has been tested for stability analysis for several benchmarks, however to qualify the SIMULATE-3K code for a particular power plant a specific reactor plant analysis must be done. In this paper, the plant model of Laguna Verde Nuclear Power Plant is built and SIMULATE-3K is tested against the 1995 coupled neutronic/thermal-hydraulic instability event of Laguna Verde. Results obtained show the adequacy of this code to specific Laguna Verde power plant stability analysis.

  3. Análisis de la incidencia de las redes sociales en la construcción de un movimiento. La Ola Verde en las elecciones presidenciales de 2010

    OpenAIRE

    Barrios Bernal, Andrés Giovanni

    2013-01-01

    Esta monografía pretende revisar la incidencia de las redes sociales, tanto tradicionales como virtuales, en el proceso de construcción del movimiento "la Ola Verde" en las elecciones presidenciales de 2010. Este movimiento se constituyó en un fenómeno político y social efímero que en pocos meses logró competir contra maquinarias políticas ya consolidadas pero que no logró la victoria electoral anhelada. Este trabajo de grado está estructurado en tres secciones las cuales nacieron a partir de...

  4. 78 FR 34373 - Campo Verde Solar, LLC; Supplemental Notice That Initial Market-Based Rate Filing Includes...

    Science.gov (United States)

    2013-06-07

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Docket No. ER13-1541-000] Campo Verde Solar, LLC; Supplemental Notice That Initial Market- Based Rate Filing Includes Request for Blanket Section 204 Authorization This is a supplemental notice in the above-referenced proceeding of Campo Verde...

  5. O arquipélago “literopintado”: escritura literária de autoria feminina em Cabo Verde

    Directory of Open Access Journals (Sweden)

    Simone Caputo Gomes

    2010-12-01

    Full Text Available Este artigo tem por objetivo estudar a representação de Cabo Verde pela literatura de autoria feminina, que retrata – lê, pinta, desenha, esculpe, escreve, imagina – suas belas paisagens, seu cotidiano popular, seus perfis de mulher, sua riqueza cultural.Palavras-chave: Literatura feminina; Cabo Verde; Representação cultural.

  6. 75 FR 13606 - Arizona Public Service Company, Palo Verde Nuclear Generating Station, Units 1, 2, and 3...

    Science.gov (United States)

    2010-03-22

    ... NUCLEAR REGULATORY COMMISSION [Docket Nos. STN 50-528, STN 50-529, and STN 50-530; NRC-2010-0114] Arizona Public Service Company, Palo Verde Nuclear Generating Station, Units 1, 2, and 3; Environmental...-74, issued to Arizona Public Service Company (APS, the licensee), for operation of the Palo Verde...

  7. 77 FR 38280 - Verde Energy USA New York, LLC; Supplemental Notice That Initial Market-Based Rate Filing...

    Science.gov (United States)

    2012-06-27

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Docket No. ER12-2071-000] Verde Energy USA New York, LLC; Supplemental Notice That Initial Market-Based Rate Filing Includes Request for... Verde Energy USA New York, LLC's application for market-based rate authority, with an accompanying rate...

  8. 78 FR 32240 - Notice of Inent (NOI) To Prepare an Environmental Impact Statement (EIS) for the Oro Verde Solar...

    Science.gov (United States)

    2013-05-29

    ... DEPARTMENT OF DEFENSE Notice of Inent (NOI) To Prepare an Environmental Impact Statement (EIS) for the Oro Verde Solar Project at Edwards Air Force Base and County of Kern, CA AGENCY: Department of the... with the development of the Oro Verde Solar Project (OVSP) on Edwards AFB. The OVSP is a solar...

  9. 76 FR 43684 - Verde Energy USA Trading, LLC; Supplemental Notice That Initial Market-Based Rate Filing Includes...

    Science.gov (United States)

    2011-07-21

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Docket No. ER11-4041-000] Verde Energy USA Trading, LLC; Supplemental Notice That Initial Market-Based Rate Filing Includes Request for... Verde Energy USA Trading, LLC's application for market-based rate authority, with an accompanying rate...

  10. 75 FR 8149 - Arizona Public Service Company, et al. Palo Verde Nuclear Generating Station, Units 1, 2, and 3...

    Science.gov (United States)

    2010-02-23

    ...] Arizona Public Service Company, et al. Palo Verde Nuclear Generating Station, Units 1, 2, and 3... NPF-74, issued to the Arizona Public Service Company (APS, or the licensee), for operation of the Palo Verde Nuclear Generating Station (PVNGS, the facility), Units 1, 2, and 3, respectively, located in...

  11. Analysis of the stability of events occurred in Laguna Verde; Analisis de estabilidad de eventos ocurridos en Laguna Verde

    Energy Technology Data Exchange (ETDEWEB)

    Castillo D, R.; Ortiz V, J. [ININ, 52045 Ocoyoacac, Estado de Mexico (Mexico); Calleros M, G. [CFE, Central Nucleoelectrica Laguna Verde, Carretera Cardel-Nautla Km. 42.5, Alto Lucero, Veracruz (Mexico)

    2005-07-01

    The new fuel designs for operation cycles more long have regions of uncertainty bigger that those of the old fuels, and therefore, they can have oscillations of power when an event is presented that causes that the reactor operates to high power and low flow of coolant. During the start up of the reactor there are continued procedures that avoid that oscillations are presented with that which makes sure the stable behavior of the reactor. However, when the reactor is operating to nominal conditions and they are shot or they are transferred to low speed the recirculation pumps, it cannot make sure that the reactor doesn't present oscillations of power when entering to the restricted operation regions. The methods of stability analysis commonly use signs of neutronic noise that require to be stationary, but after a transitory one where they commonly get lost the recirculation pumps the signs they don't have the required characteristics, for what they are used with certain level of uncertainty by the limited validity of the models. In this work the Prony method is used to determine the reactor stability, starting from signs of transitory and it is compared with autoregressive models. Four events are analyzed happened in the Laguna Verde power plant where the reactor was in the area of high power and low flow of coolant, giving satisfactory results. (Author)

  12. Sado, la cerimònia del te japonesa

    OpenAIRE

    Lluch Garcia, Lídia

    2016-01-01

    La cerimònia del te japonesa, o Sado, és el ritual de la preparació i el servei del te verd japonès, matcha. Influenciada pel budisme zen, és una doctrina que requereix anys d'estudi i pràctica, ja que l'ensenyança d'aquesta cerimònia inclou l'estudi d'altres arts japoneses tals com la cal•ligrafia, o shodo, l'arranjament floral, o ikebana, i l'art del quimono, entre d'altres. Aquest treball explora la història de la cerimònia del te, des dels seus orígens fins a la seva situació actual; així...

  13. LA DENSIDAD Y TAMAÑO DE PLÁNTULAS CON CEPELLÓN EN LA PRODUCCIÓN DE ESPÁRRAGO VERDE

    OpenAIRE

    Ana Mar\\u00EDa Castagnino; Karina Elizabeth D\\u00EDaz; Patricia Sastre V\\u00E1zquez; Mar\\u00EDa Bel\\u00E9n Rosini; Silvina Sasale

    2011-01-01

    La densidad y tamaño de plántulas con cepellón en la producción de espárrago verde. Con el objetivo de determinar la influencia del tamaño de la celda utilizada para la obtención de plántulas de espárrago y la densidad o marco de plantación empleado, sobre la producción de turiones, se evaluó en invernadero tres tamaños de celda: 1) PG: grande (70 cm³), 2) PM: mediana (30 cm³) y 3) PCh: pequeña (20 cm³) y tres densidades (35 714 (D1); 23 810 (D2) y 17 857 (D3) plantas/ha). Se efectuó un traba...

  14. Desplazamientos de la iguana verde, Iguana iguana (Squamata: Iguanidae) durante la estación seca en La Palma, Veracruz, México

    OpenAIRE

    Morales-Mávil, Jorge E; Vogt, Richard C; Gadsden-Esparza, Héctor

    2007-01-01

    Usamos radiotransmisores para determinar los desplazamientos de la iguana verde (Iguana iguana) en el periodo de anidación (febrero-julio) en La Palma, Los Tuxtlas, Veracruz, México (18°33’ N, 95°03’ W). Las iguanas fueron radiolocalizadas entre 23 y 30 ocasiones, principalmente en árboles (56 % entre 3-9 m); sólo 4 % fueron localizadas en el suelo. El tamaño del ámbito hogareño de machos y de hembras fue similar (9 158.06±3 025.3 m² vs. 6 591.24±4 001.1 m², respectivamente; t= 0.51, p>0.05)....

  15. Groundwater resources of Mosteiros basin, island of Fogo, Cape Verde, West Africa

    Science.gov (United States)

    Heilweil, Victor M.; Gingerich, Stephen B.; Plummer, Niel; Verstraeten, Ingrid M.

    2010-01-01

    Groundwater resources in Cape Verde provide water for agriculture, industry, and human consumption. These resources are limited and susceptible to contamination. Additional groundwater resources are needed for continued agricultural development, particularly during times of drought, but increased use and (or) climatic change may have adverse effects on the quantity and quality of freshwater available. In volcanic island aquifers such as those of Cape Verde, a lens of fresh groundwater typically ?floats? upon a layer of brackish water at the freshwater/saltwater boundary, and increased pumping may cause salt water intrusion or other contamination. A recent U.S. Geological Survey study assessed baseline groundwater conditions in watersheds on three islands of Cape Verde to provide the scientific basis for sustainably developing water resources and minimizing future groundwater depletion and contamination.

  16. Low concentrations of persistent organic pollutants (POPs) in air at Cape Verde.

    Science.gov (United States)

    Nøst, Therese Haugdahl; Halse, Anne Karine; Schlabach, Martin; Bäcklund, Are; Eckhardt, Sabine; Breivik, Knut

    2018-01-15

    Ambient air is a core medium for monitoring of persistent organic pollutants (POPs) under the Stockholm Convention and is used in studies of global transports of POPs and their atmospheric sources and source regions. Still, data based on active air sampling remain scarce in many regions. The primary objectives of this study were to (i) monitor concentrations of selected POPs in air outside West Africa, and (ii) to evaluate potential atmospheric processes and source regions affecting measured concentrations. For this purpose, an active high-volume air sampler was installed on the Cape Verde Atmospheric Observatory at Cape Verde outside the coast of West Africa. Sampling commenced in May 2012 and 43 samples (24h sampling) were collected until June 2013. The samples were analyzed for selected polychlorinated biphenyls (PCBs), polybrominated diphenyl ethers (PBDEs), hexachlorobenzene (HCB) and chlordanes. The concentrations of these POPs at Cape Verde were generally low and comparable to remote sites in the Arctic for several compounds. Seasonal trends varied between compounds and concentrations exhibited strong temperature dependence for chlordanes. Our results indicate net volatilization from the Atlantic Ocean north of Cape Verde as sources of these POPs. Air mass back trajectories demonstrated that air masses measured at Cape Verde were generally transported from the Atlantic Ocean or the North African continent. Overall, the low concentrations in air at Cape Verde were likely explained by absence of major emissions in areas from which the air masses originated combined with depletion during long-range atmospheric transport due to enhanced degradation under tropical conditions (high temperatures and concentrations of hydroxyl radicals). Copyright © 2017 The Author(s). Published by Elsevier B.V. All rights reserved.

  17. Bats of Mesa Verde National Park, Colorado: composition, reproduction, and roosting habits.

    Science.gov (United States)

    O'Shea, Thomas J.; Cryan, Paul M.; Snider, E. Apple; Valdez, Ernest W.; Ellison, Laura E.; Neubaum, Daniel J.

    2011-01-01

    We determined the bat fauna at Mesa Verde National Park (Mesa Verde) in 2006 and 2007, characterized bat elevational distribution and reproduction, and investigated roosting habits of selected species. We captured 1996 bats of 15 species in mist nets set over water during 120 nights of sampling and recorded echolocation calls of an additional species. The bat fauna at Mesa Verde included every species of bat known west of the Great Plains in Colorado, except the little brown bat (Myotis lucifugus). Some species showed skewed sex ratios, primarily due to a preponderance of males. Thirteen species of bats reproduced at Mesa Verde. Major differences in spring precipitation between the 2 years of our study were associated with differences in reproductive rates and, in some species, with numbers of juveniles captured. Reduced reproductive effort during spring drought will have a greater impact on bat populations with the forecasted increase in aridity in much of western North America by models of global climate change. We radiotracked 46 bats of 5 species to roosts and describe the first-known maternity colonies of spotted bats (Euderma maculatum) in Colorado. All 5 species that we tracked to diurnal roosts relied almost exclusively on rock crevices rather than trees or snags, despite the presence of mature forests at Mesa Verde and the use of trees for roosts in similar forests elsewhere by some of these species. Comparisons with past bat surveys at Mesa Verde and in surrounding areas suggest no dramatic evidence for effects of recent stand-replacing fires on the composition of the bat community.

  18. The cone snails of Cape Verde: Marine endemism at a terrestrial scale

    Directory of Open Access Journals (Sweden)

    Howard Peters

    2016-07-01

    Full Text Available Cape Verde in the Eastern Atlantic is typical of many island groups in supporting a wealth of endemic species both terrestrial and marine. Marine gastropod molluscs of the genus Conus, commonly known as cone snails, occur in coastal tropical waters throughout the globe, but in Cape Verde their endemism reaches its apogee with 53 out of 56 species occurring nowhere else, the majority of which are restricted to single islands and frequently to single bays. However, Cape Verde is rapidly moving to a tourism-based economy with a projected boom in infrastructure development often coincidental with the shallow-water habitat of many range-restricted Conus. The conservation assessment of Conus to standards of the International Union for the Conservation of Nature (IUCN Red List of Endangered Species, found that 45.3% of 53 species assessed from Cape Verde are threatened or near-threatened with extinction compared to 7.4% of 579 species in the rest of the world. The only three Conus species globally assessed as Critically Endangered and on the cusp of extinction are all endemic to Cape Verde. Our analysis of Conus species distribution, together with spatial data of coastal protected areas and tourism development zones, identify important areas for future research and new marine protection. Our findings show that endemism with its associated risks for Conus in Cape Verde has worldwide parallels with many non-marine taxa, while our proposed strategy for Conus conservation extends beyond the confines of the country and this taxonomic group.

  19. FOGO-2014: Monitoring the Fogo 2014 Eruption, Cape Verde

    Science.gov (United States)

    Fernandes, Rui; Faria, Bruno

    2015-04-01

    Fogo volcano, located in the Cape Verde Archipelago offshore Western Africa, is a complete stratovolcano system that was created by the Cape Verde hotspot, forming the island of Fogo. The top (Pico do Fogo) reaches ~2830m above sea level, and raises ~1100m above Chã das Caldeiras, an almost flat circular area with approximately 10 kilometres in the north-south direction and 7 kilometres in the east-west direction. Chã das Caldeiras, surrounded towards the West by the ~1000m high Bordeira rampart, has been inhabited since the early 20th Century, because it is one of the most productive agricultural areas in this semi-arid country. Fogo volcano erupted on November 23, 2014 (~10:00UTC) on a subsidiary vent of the main cone, after 19 years of inactivity. C4G (Collaboratory for Geosciences), a distributed research infrastructure created in 2014 in the framework of the Portuguese Roadmap for Strategic Research Infrastructures, immediately offered support to the Cape Verdean authorities, with the goal of complementing the permanent geophysical monitoring network operated in Fogo island by INMG, the Cape Verdean Meteorological and Geophysical Institute. This permanent network is composed of seven seismographic stations and three tiltmeter stations, and the data is transmitted in real time to the INMG geophysical laboratory in São Vicente Island, where it is analysed on a routine basis. Pre-eruptive activity started to be detected by the permanent monitoring network on October 2014, with earthquakes occurring at depths larger than 15 km. These events led to a first volcanic warning to the Cape Verdean Civil Protection Agency. On November 22 several volcano-tectonic earthquakes were recorded at shallow depths, indicating shallow fracturing. On the basis of this activity, INMG issued a formal alert of an impending eruption to the Civil Protection Agency, ~24 hours before the onset of the eruption. Volcanic tremor and clear tiltmeter signals were recorded about one hour

  20. Chemistry technician performance evaluation program Palo Verde Nuclear Generating Station

    International Nuclear Information System (INIS)

    Shawver, J.M.

    1992-01-01

    The Arizona Nuclear Power Project (ANPP), a three-reactor site located 50 miles west of Phoenix, Arizona, has developed and implemented a program for evaluating individual chemistry technician analytical performance on a routine basis. About 45 chemistry technicians are employed at the site, 15 at each operating unit. The technicians routinely perform trace level analyses for impurities of concern to PWRs. Each month a set of blind samples is provided by an outside vendor. The blind samples contain 16 parameters which are matrixed to approximate the PWR's primary and secondary cycles. Nine technicians receive the samples, three from each operating unit, and perform the required analyses. Acceptance criteria for successful performance on the blind parameters is based on the values found in the Institute of Nuclear Power Operations (INPO) Document 83-016, Revision 2, August 1989, Chemistry Quality Control Program. The goal of the program is to have each technician demonstrate acceptable performance on each of 16 analytical parameters. On completion of each monthly set, a summary report of all of the analytical results for the sample set is prepared. From the summary report, analytical bias can be detected, technician performance is documented, and overall laboratory performance can be evaluated. The program has been very successful at satisfying the INPO requirement that the analytical performance of each individual technician should be checked on at least a six-month frequency for all important parameters measured. This paper describes the program as implemented at the Palo Verde Nuclear Generating Station and provides a summary report and trend and bias graphs for illustrative purposes

  1. Training in fundamentals of radiological coverage in Laguna Verde NPP

    International Nuclear Information System (INIS)

    Lara H, M. A.

    2014-10-01

    In 2010, the Institute of Nuclear Power Operations (INPO) celebrates the Knowledge Transfer and Retention Workshop, an event where nuclear regulators and operators presented the strategies that various NPP to worldwide were implemented to mitigate the consequences of this generational change and take advantage of it, the trend in the presented works was the same: the generational change occurs in a faster way that the transfer of knowledge, the future was already here and many NPP had not been adequately prepared to train its nuclear technicians and engineers in the tasks demanded by the industry of them, so in addition to preparing these workers to forced marches was necessary to establish strategies to retain at more experienced staff in the industry. The Laguna Verde NPP has not been exempt to this process; the preparation of personnel squares to replace those that reaching retirement age in the Comision Federal de Electricidad (CFE) has become extensive in the last five years, sometimes leading to have personnel covering functions without an alternate to the next lower position, the cause? Not enough staff. In the specific case of radiation protection (Rp) the time required for obtaining the status of Rp technician according to the ANSI/ANS 3.1 standard is 2 years, one of the tasks that most occupies part of these two years is training in radiological coverage, this training requires a mix of knowledge and experience, recently one of the concepts used for training in Rp is the evaluation and management of the radiological risk, topic that is considered in this technical work. (Author)

  2. Revestimentos biodegradaveis para conservação do coco 'anão verde'

    OpenAIRE

    Josane Maria Resende

    2007-01-01

    Resumo: A água de coco verde é extremamente perecível após a colheita dos frutos e sua qualidade está diretamente relacionada às condições do ambiente de armazenagem. Portanto, são necessárias tecnologias que permitam a conservação do coco verde por um período superior a trinta dias para que o fruto possa ser exportado e comercializado mantendo a água em condições apropriadas para o consumo ao natural. O presente trabalho teve o objetivo de desenvolver revestimentos biodegradáveis para prolon...

  3. Considerations for increasing unit 1 spent fuel pool capacity at the Laguna Verde station

    International Nuclear Information System (INIS)

    Vera, A.

    1992-01-01

    To increase the spent fuel storage capacity at the Laguna Verde Station in a safe and economical manner and assure a continuous operation of the first Mexican Nuclear Plant, Comision Federal de Electricidad (CFE), the Nation's Utility, seeked alternatives considering the overall world situation, the safety and licensing aspects, as well as the economics and the extent of the nuclear program of Mexico. This paper describes the alternatives considered, their evaluation and how the decision taken by CFE in this field, provides the Laguna Verde Station with a maximum of 37 years storage capacity plus full core reserve

  4. Application of a new methodology on the multicycle analysis for the Laguna Verde NPP en Mexico

    International Nuclear Information System (INIS)

    Cortes C, Carlos C.

    1997-01-01

    This paper describes the improvements done in the physical and economic methodologies on the multicycle analysis for the Boiling Water Reactors of the Laguna Verde NPP in Mexico, based on commercial codes and in-house developed computational tools. With these changes in our methodology, three feasible scenarios are generated for the operation of Laguna Verde Nuclear Power Plant Unit 2 at 12, 18 and 24 months. The physical economic results obtained are showed. Further, the effect of the replacement power is included in the economic evaluation. (author). 11 refs., 3 figs., 7 tabs

  5. Oral receptivity of Aedes aegypti from Cape Verde for yellow fever, dengue, and chikungunya viruses.

    Science.gov (United States)

    Vazeille, Marie; Yébakima, André; Lourenço-de-Oliveira, Ricardo; Andriamahefazafy, Barrysson; Correira, Artur; Rodrigues, Julio Monteiro; Veiga, Antonio; Moreira, Antonio; Leparc-Goffart, Isabelle; Grandadam, Marc; Failloux, Anna-Bella

    2013-01-01

    At the end of 2009, 21,313 cases of dengue-3 virus (DENV-3) were reported in the islands of Cape Verde, an archipelago located in the Atlantic Ocean 570 km from the coast of western Africa. It was the first dengue outbreak ever reported in Cape Verde. Mosquitoes collected in July 2010 in the city of Praia, on the island of Santiago, were identified morphologically as Aedes aegypti formosus. Using experimental oral infections, we found that this vector showed a moderate ability to transmit the epidemic dengue-3 virus, but was highly susceptible to chikungunya and yellow fever viruses.

  6. The apid cuckoo bees of the Cape Verde Islands (Hymenoptera, Apidae).

    Science.gov (United States)

    Straka, Jakub; Engel, Michael S

    2012-01-01

    The apid cuckoo bees of the Cape Verde Islands (Republic of Cape Verde) are reviewed and five species recognized, representing two genera. The ammobatine genus Chiasmognathus Engel (Nomadinae: Ammobatini), a specialized lineage of cleptoparasites of nomioidine bees is recorded for the first time. Chiasmognathus batelkaisp. n. is distinguished from mainland African and Asian species. The genus Thyreus Panzer (Apinae: Melectini) is represented by four species - Thyreus denoliisp. n., Thyreus batelkaisp. n., Thyreus schwarzisp. n., and Thyreus aistleitnerisp. n. Previous records of Thyreus scutellaris (Fabricius) from the islands were based on misidentifications.

  7. Extracción de taninos del banano verde de rechazo

    OpenAIRE

    Velásquez Valderrama, Ángela María

    2005-01-01

    Introduction: On of the most evident applications of biotechnological practices in bioindustry is the fermentation process with organisms like funguses and bacteria. They obtain the energy they need to grow and develop themselves from an organic subtract. During the kinetic mechanism of cellular growth and inhibition, use of subtract and maintenance, metabolic products of waste are produced simultaneously, and they are very important for industry. Objective: To dete...

  8. Uso de cuatro extractos organicos para el control del pulgon verde (Myzus persicae Sulz) (ING)

    OpenAIRE

    Rodríguez Navas, Hernán; Blanco, Fabio A.

    2016-01-01

    Extracts of leaves and stems of Neurolaena lobata; leaves, stems and fruits of Momordica charantia, wood of Quassia amara and seeds of Annona muricata, were tested regarding their effectiveness for control of green peach aphid (Myzus persicae). In a first stage, groups of 10 individuals of M. persicae were placed inside petri dishes together with a small and slight piece of synthetic cloth soaked with either substance extracted. Several concentrations were used. After two hours; more than 50%...

  9. Uso de cuatro extractos organicos para el control del pulgon verde (Myzus persicae Sulz (ING

    Directory of Open Access Journals (Sweden)

    Hernán Rodríguez Navas

    2016-03-01

    Full Text Available Extracts of leaves and stems of Neurolaena lobata; leaves, stems and fruits of Momordica charantia, wood of Quassia amara and seeds of Annona muricata, were tested regarding their effectiveness for control of green peach aphid (Myzus persicae. In a first stage, groups of 10 individuals of M. persicae were placed inside petri dishes together with a small and slight piece of synthetic cloth soaked with either substance extracted. Several concentrations were used. After two hours; more than 50% of the individuals had been killed in every petri dish, which allowed all extracts to pass on to the second stage. The second stage consisted of two experiments. The first one was done in spring at a greenhouse day temperature of 10°C,  using only the first three substances, each of them diluted 1:100. The second one was conducted in Summer at about 25°C with the four substances. Distilled water acted as a control in both experiments. Tobacco plants (Nicotiana tabacum infested with M. persicae were sprayed with the solutions and survivors counted 24 and 72 hours later. In the first experiment Q amara  and M. charantia had 78% and 77% effectiveness respectively, which were statiscally (P< 0.05 higher than that of N. lobata  (63%. In the second experiment, because of the warmer weather, they improved their performance, specially N. lobata (98%. This and A. muricata were found statistically (P< 0.05 higher than the others.

  10. Soil and Water Conservation Strategies in Cape Verde (Cabo Verde in Portuguese and Their Impacts on Livelihoods: An Overview from the Ribeira Seca Watershed

    Directory of Open Access Journals (Sweden)

    Isaurinda Baptista

    2015-01-01

    Full Text Available Severe land degradation has strongly affected both people’s livelihood and the environment in Cape Verde (Cabo Verde in Portuguese, a natural resource poor country. Despite the enormous investment in soil and water conservation measures (SWC or SLM, which are visible throughout the landscape, and the recognition of their benefits, their biophysical and socioeconomic impacts have been poorly assessed and scientifically documented. This paper contributes to filling this gap, by bringing together insights from literature and policy review, field survey and participatory assessment in the Ribeira Seca Watershed through a concerted approach devised by the DESIRE project (the “Desire approach”. Specifically, we analyze government strategies towards building resilience against the harsh conditions, analyze the state of land degradation and its drivers, survey and map the existing SWC measures, and assess their effectiveness against land degradation, on crop yield and people’s livelihood. We infer that the relative success of Cape Verde in tackling desertification and rural poverty owes to an integrated governance strategy that comprises raising awareness, institutional framework development, financial resource allocation, capacity building, and active participation of rural communities. We recommend that specific, scientific-based monitoring and assessment studies be carried out on the biophysical and socioeconomic impact of SLM and that the “Desire approach” be scaled-up to other watersheds in the country.

  11. Purpura, verde, azul...la calidad como un color

    OpenAIRE

    Lorenzo Ramírez, Nuria

    2009-01-01

    El objetivo de este artículo es explicar, compartir y hacer públicos algunos pensamientos e ideas sobre la Universidad y la cultura del profesorado universitario. Se parte de la idea de que no existe armonía entre la gestión, la técnica y la cultura universitaria. Si como docentes aprendemos de la experiencia y del ambiente de trabajo, entonces cabe preguntarse por nuestras experiencias y por los conocimientos que a travcs de ellas hemos generado, para mantenerlos o rechazar...

  12. Estratigrafía del Grupo Mina Verdun, Proterozoico de Minas, Uruguay

    OpenAIRE

    Poiré, Daniel G.; González, Pablo D.; Canalicchio, José M.; García Repetto, Flavio

    2005-01-01

    El objetivo del presente trabajo es el de presentar un cuadro estratigráfico para las sedimentitas del área del Cerro Verdún, Minas, Uruguay. Asimismo presentar algunas consideraciones sobre sus características sedimentológicas y sus estromatolitos, a fin de discutir sus condiciones paleoambientales. En el mismo sentido, se realizan inferencias sobre la edad abarcada por estas rocas y sus potenciales correlaciones regionales. Esta sucesión ha permanecido indefinida en general, mientras que su...

  13. Oportunidad de complementar la red verde interior de Vitoria-Gasteiz, a través de las cubiertas de los equipamientos públicos

    Directory of Open Access Journals (Sweden)

    Elena Basanta Carmona

    2013-04-01

    Full Text Available Resumen. Uno de los principales problemas de las ciudades actuales es la fuerte contaminación atmosférica causada en gran medida por las emisiones de Gases de Efecto Invernadero (GEI a la atmósfera. Las cubiertas de los edificios se presentan en este contexto, como elementos constructivos donde introducir superficies vegetales que ayuden a contrarrestar estas emisiones, ya que las cubiertas verdes, al formar parte de la infraestructura del verde urbano, actúan como sumideros de CO2. Este artículo aborda los beneficios y consecuencias de la introducción de cubiertas verdes en los equipamientos públicos como lugares de oportunidad, centrándose en la cuantificación de la mejora de las emisiones de CO2 y en el papel que desempeñan en la configuración de la red verde interior de la ciudad de Vitoria-Gasteiz.Palabras clave. Cubiertas vegetales, equipamientos públicos, ahorro energético, emisiones de CO2, sumideros de CO2, infraestructura verde.                                                                                                                                                          Abstract.                                                                                       One of the main problems of today's cities is heavy air pollution caused largely by emissions of GreenHouse Gases (GHG into the atmosphere. The roofs of the buildings are presented in this context, as constructive elements which enter plant surfaces that help offset these emissions. The green roofs, as part of urban green infrastructure, act as sinks for CO2. This article discusses the benefits and consequences of introducing green roofs in public facilities as places of opportunity, focusing on improving quantification of CO2 emissions and the role they play in the green network

  14. EFEITO DA ADUBAÇÃO VERDE NA CULTURA DO MILHO (Zea mays L.

    Directory of Open Access Journals (Sweden)

    Maxwel Rodrigues Nascimento

    2017-03-01

    Full Text Available A adubação verde consiste no cultivo de diferentes espécies vegetais em uma mesma área, em sucessão ou simultaneamente com a finalidade principal de melhorar a fertilidade do solo. Prefere-se assim, aquelas que produzam maior volume de matéria seca, estejam menos sujeitas a pragas e doenças e que possuam sementes relativamente uniformes e fáceis de semear. As plantas da família Fabaceae são as mais utilizadas na adubação verde por apresentarem elevado potencial em fixar o nitrogênio atmosférico.  Objetivou-se com a realização deste trabalho elaborar uma revisão de literatura sobre o rendimento da cultura do milho em consórcio e sucessão às espécies vegetais utilizadas para adubação verde. Com base nos resultados obtidos é possível inferir que a prática da adubação verde na cultura do milho é viável, além de melhorar a fertilidade e as características físicas do solo diminui a dependência por adubos minerais.

  15. Laguna Verde nuclear power plant: an experience to consider in advanced BWR design

    International Nuclear Information System (INIS)

    Fuentes Marquez, L.

    2001-01-01

    Laguna Verde is a BWR 5 containment Mark II. Designed by GE, two external re-circulation loops, each of them having two speed re-circulation pump and a flow control valve to define the drive flow and consequently the total core flow an power control by total core flow. Laguna Verde Design and operational experience has shown some insights to be considering in design for advanced BRW reactors in order to improve the potential of nuclear power plants. NSSS and Balance of plant design, codes used to perform nuclear core design, margins derived from engineering judgment, at the time Laguna Verde designed and constructed had conducted to have a plant with an operational license, generating with a very good performance and availability. Nevertheless, some design characteristics and operational experience have shown that potential improvements or areas of opportunity shall be focused in the advanced BWR design. Computer codes used to design the nuclear core have been evolved relatively fast. The computers are faster and powerful than those used during the design process, also instrumentation and control are becoming part of this amazing technical evolution in the industry. The Laguna Verde experience is the subject to share in this paper. (author)

  16. Optimizing soil and water management in dryland farming systems in Cabo Verde

    NARCIS (Netherlands)

    Santos Baptista Costa, Dos I.

    2016-01-01

    “Optimizing Soil and Water Management in Dryland Farming Systems in Cabo Verde”

    Isaurinda Baptista

    Summary

    Soil and land degradation poses a great challenge for sustainable development worldwide and, in Cabo Verde, has strongly affected both

  17. New aspects in the radiological emergency plan outside the Nuclear power plant of Laguna Verde

    International Nuclear Information System (INIS)

    Alva L, S.

    1991-01-01

    The Mexican government through the National Commission of Nuclear Safety and Safeguards has imposed to the Federal Commission of Electricity to fulfill the requirement of having a functional Emergency Plan and under the limits that the regulator organisms in the world have proposed. The PERE (Plan of External Radiological Emergency) it has been created for the Nuclear Power station of Laguna Verde, Mexico

  18. Cape Verde Report on the Observance of Standards and Codes : Accounting and Auditing

    OpenAIRE

    World Bank

    2012-01-01

    This Report on the Observance of Standards and Codes (ROSC) provides an assessment of the strengths and weaknesses of the existing financial reporting infrastructure that underpins financial accounting and auditing practices in Cape Verde. The assessment focuses on six pillars of financial reporting infrastructure: statutory framework, professional education and training, accountancy profe...

  19. Geochemical stratigraphy of submarine lavas (3-5 Ma) from the Flamengos Valley, Santiago, Cape Verde

    DEFF Research Database (Denmark)

    Barker, Abigail K; Holm, Paul Martin; Peate, David W.

    2009-01-01

    New high-precision Pb-Sr-Nd isotope, major and trace element and mineral chemistry data are presented for the submarine stage of ocean island volcanism on Santiago, one of the southern islands of the Cape Verde archipelago. Pillow basalts and hyaloclastites in the Flamengos Valley are divided...

  20. Mesa Verde: A Study of Man in an Agricultural Setting. Student Manual.

    Science.gov (United States)

    Community Health Service (DHEW/PHS), Bethesda, MD.

    This student manual contains information and guides to assist the secondary student in functioning as an archeologist. Included are fables, pictures for analysis, a time line and description of the pre-history of Mesa Verde, Colorado. The manual concludes with artifact identification word sheets. A related document is ED 001 722. (AWW)

  1. Immigration and Resiliency: Unpacking the Experiences of High School Students from Cape Verde and Ethiopia

    Science.gov (United States)

    Hersi, Afra Ahmed

    2011-01-01

    This article explores the complex factors, both individual and social, that contribute to the resiliency and academic achievement of six adolescent African immigrant students from Cape Verde and Ethiopia who were enrolled in a small high school in the United States. The school was designed specifically for recent adolescent immigrant students.…

  2. Synthesis of Upper Verde River research and monitoring 1993-2008

    Science.gov (United States)

    Daniel G. Neary; Alvin L. Medina; John N. Rinne

    2012-01-01

    This volume is a state-of-knowledge synthesis of monitoring and research conducted on the Upper Verde River (UVR) of Arizona. It contains information on the history, hydrology, soils, geomorphology, vegetation, and fish fauna of the area that can help land managers and other scientists in successfully conducting ecosystem management and future monitoring and research...

  3. Promoting Distance Education in Higher Education in Cape Verde and Mozambique

    Science.gov (United States)

    Ramos, Fernando; Taju, Gulamo; Canuto, Louisette

    2011-01-01

    Over the past six years, the authors have been project leaders for three distance education initiatives in Cape Verde and Mozambique: (1) a blended learning master's degree in multimedia in education for faculty in Cape Verdean public higher education institutions (2005-2008); (2) a teacher training programme for 1375 elementary teachers provided…

  4. Verde plant bug is associated with cottong boll rot in South Texas cotton

    Science.gov (United States)

    Verde plant bug was the dominant boll-feeding sucking bug species (>98% of insects collected using a beat bucket) from peak to late bloom in cotton fields near the coast along the Coastal Bend of South Texas, from Port Lavaca to the Lower Rio qrande Valley in 2010 and 2011. It was common in fields w...

  5. Environmental Education Evaluation at the School: An Example in Sao Nicolau Island, Cape Verde

    Science.gov (United States)

    Graziani, Pietro; Cabral, Daniel; Santana, Nelson

    2013-01-01

    Monte Gordo Natural Park (MGNP) is part of the Cape Verde (CV) Protected Areas National Network. In order to create an effective Environmental Education (EE) curriculum, it is crucial to first identify the level of environmental knowledge of both teachers and students. In 2007 we implemented a set of four surveys to students and educators and…

  6. Impacts of the Conservation Education Program in Serra Malagueta Natural Park, Cape Verde

    Science.gov (United States)

    Burnett, Edmund; Sills, Erin; Peterson, M. Nils; DePerno, Christopher

    2016-01-01

    Environmental and conservation education programs are commonly offered in the rapidly expanding network of protected areas in developing countries. There have been few evaluations of these programs and their impacts on participants. At Serra Malagueta Natural Park in Cape Verde, we assessed changes in environmental knowledge, opinions, and…

  7. Lotus alianus, a new species from Cabo Verde and nomeenclatural notes on Lotus section Pedrosia (Fabaceae)

    Science.gov (United States)

    Lotus alianus J.H. Kirkbr., sp. nov., is described and illustrated. It is a rare endemic species from the Republic of Cape Verde, and is found in dry habitats on just two islands, Ilhas de Santo Antao and Sao Vicente. In addition, two species names are synonymized with L. creticus L., and a lectotyp...

  8. The volcanic and geochemical development of São Nicolau, Cape Verde Islands

    DEFF Research Database (Denmark)

    Duprat, Helene Inga; Holm, Paul Martin; Sherson, Jacob Friis

    2007-01-01

    We present 34 new age results from 40 Ar/39 Ar incremental heating analyses of groundmass separates from volcanic rocks from São Nicolau, Cape Verde. Combining the age results with field observations, we show that the volcanic activity that formed the island occurred in four separate stages: 1: >6...

  9. Design optimization for fuel reloading in Laguna Verde nuclear power plant

    International Nuclear Information System (INIS)

    Cortes Campos, C.C.; Montes Tadeo, J.L.

    1991-01-01

    Procedure followed to perform the design optimation in fuel reloading is described in general words and also is shown an example in which such procedure was uses for analysis of BWR type reactor in unit 1 of Laguna Verde nuclear power plant (Author)

  10. Internal event analysis of Laguna Verde Unit 1 Nuclear Power Plant. System Analysis

    International Nuclear Information System (INIS)

    Huerta B, A.; Aguilar T, O.; Nunez C, A.; Lopez M, R.

    1993-01-01

    The Level 1 results of Laguna Verde Nuclear Power Plant PRA are presented in the I nternal Event Analysis of Laguna Verde Unit 1 Nuclear Power Plant , CNSNS-TR-004, in five volumes. The reports are organized as follows: CNSNS-TR-004 Volume 1: Introduction and Methodology. CNSNS-TR-004 Volume 2: Initiating Event and Accident Sequences. CNSNS-TR-004 Volume 3: System Analysis. CNSNS-TR-004 Volume 4: Accident Sequence Quantification and Results. CNSNS-TR-004 Volume 5: Appendices A, B and C. This volume presents the results of the system analysis for the Laguna Verde Unit 1 Nuclear Power Plant. The system analysis involved the development of logical models for all the systems included in the accident sequence event tree headings, and for all the support systems required to operate the front line systems. For the Internal Event analysis for Laguna Verde, 16 front line systems and 5 support systems were included. Detailed fault trees were developed for most of the important systems. Simplified fault trees focusing on major faults were constructed for those systems that can be adequately represent,ed using this kind of modeling. For those systems where fault tree models were not constructed, actual data were used to represent the dominant failures of the systems. The main failures included in the fault trees are hardware failures, test and maintenance unavailabilities, common cause failures, and human errors. The SETS and TEMAC codes were used to perform the qualitative and quantitative fault tree analyses. (Author)

  11. Modernization of the turbo in the Laguna Verde Nuclear Power Plant

    International Nuclear Information System (INIS)

    Liebana, B.; Merino, A.; Cobos, A.; Gonzalez, J. J.

    2010-01-01

    The power increase of the Laguna Verde Nuclear Power Plant is a project for the rehabilitation and modernization of the turbo and associated equipment to get an increase of its power and of its service life. The project scope includes the design, the engineering, the equipment supply, the installation, the testing and the commissioning. This paper describes the first phase of the project.

  12. A volcanological and geochemical investigation of Boa Vistta, Cape Verde Islands

    DEFF Research Database (Denmark)

    Dyhr, Charlotte Thorup; Holm, Paul Martin

    2009-01-01

    Boa Vista, the easternmost island in the Cape Verde archipelago, consists of volcanic products, minor intrusions and a thin partial sedimentary cover. The first 15 age results from 40Ar/39Ar incremental heating analysis of groundmass separates from volcanic and plutonic rocks from Boa Vista are p...

  13. Mesa Verde: A Study of Man in an Agricultural Setting. Library Packet.

    Science.gov (United States)

    Community Health Service (DHEW/PHS), Bethesda, MD.

    This collection of secondary readings contains general information about the ecology of living space, and specific information about the prehistory ecology of Mesa Verde, Colorado. There is also a section on how anthropologists use trees to date artifacts. A related document is indexed as ED 001 721. (AWW)

  14. Zoanthids of the Cape Verde Islands and their symbionts: previously unexamined diversity in the Northeastern Atlantic

    NARCIS (Netherlands)

    Reimer, J.D.; Hirose, M.; Wirtz, P.

    2010-01-01

    The marine invertebrate fauna of the Cape Verde Islands contains many endemic species due to their isolated location in the eastern Atlantic, yet research has not been conducted on most taxa here. One such group are the zoanthids or mat anemones, an order of benthic cnidarians (Hexacorallia:

  15. Sediment transport on the Palos Verdes shelf, California

    Science.gov (United States)

    Ferre, B.; Sherwood, C.R.; Wiberg, P.L.

    2010-01-01

    Sediment transport and the potential for erosion or deposition have been investigated on the Palos Verdes (PV) and San Pedro shelves in southern California to help assess the fate of an effluent-affected deposit contaminated with DDT and PCBs. Bottom boundary layer measurements at two 60-m sites in spring 2004 were used to set model parameters and evaluate a one-dimensional (vertical) model of local, steady-state resuspension, and suspended-sediment transport. The model demonstrated skill (Brier scores up to 0.75) reproducing the magnitudes of bottom shear stress, current speeds, and suspended-sediment concentrations measured during an April transport event, but the model tended to underpredict observed rotation in the bottom-boundary layer, possibly because the model did not account for the effects of temperature-salinity stratification. The model was run with wave input estimated from a nearby buoy and current input from four to six years of measurements at thirteen sites on the 35- and 65-m isobaths on the PV and San Pedro shelves. Sediment characteristics and erodibility were based on gentle wet-sieve analysis and erosion-chamber measurements. Modeled flow and sediment transport were mostly alongshelf toward the northwest on the PV shelf with a significant offshore component. The 95th percentile of bottom shear stresses ranged from 0.09 to 0.16 Pa at the 65-m sites, and the lowest values were in the middle of the PV shelf, near the Whites Point sewage outfalls where the effluent-affected layer is thickest. Long-term mean transport rates varied from 0.9 to 4.8 metric tons m-1 yr-1 along the 65-m isobaths on the PV shelf, and were much higher at the 35-m sites. Gradients in modeled alongshore transport rates suggest that, in the absence of a supply of sediment from the outfalls or PV coast, erosion at rates of ???0.2 mm yr-1 might occur in the region southeast of the outfalls. These rates are small compared to some estimates of background natural sedimentation

  16. Ancient mortars from Cape Verde: mineralogical and physical characterization

    Science.gov (United States)

    Rocha, Fernando; Costa, Cristiana; Velosa, Ana; Quintela, Ana; Terroso, Denise; Marques, Vera

    2014-05-01

    Times and locations of different building constructions means different knowledge, habits, different construction methods and materials. The study and safeguarding of the architectural heritage takes nowadays a progressive importance as a vehicle for transmission of cultures and history of nations. The coatings are of great importance in the durability of a building due to the protective role of the masonry. The compatibility between the materials with which they are executed (masonry, mortar and grout settlement) promotes the proper functioning of the wall and a consequent increase in durability. Therefore, it becomes important to study and characterize the mortar coating of buildings to know its characteristics and to use compatible materials in the rehabilitation and maintenance of buildings. This study aims to characterize the chemical, physical, mechanical and mineralogical mortar samples collected in buildings in three islands of Cape Verde, for the conservation, rehabilitation and preservation of them. The collected samples belong to buildings constructed in the end of XIX century and in the beginning of XX century. In order to characterize the mortar samples some tests was made, such as X-Ray Diffraction, X- Ray Fluorescence, acid attack and mechanical strength. The samples were divided into three groups depending on origin; so we have a first group collected on the island of Santiago, the second on the island of Saint Vincent and the third on the island of Santo Antao. The samples are all carbonated, but Santiago samples have a lower carbonates content. In terms of insoluble residue (from the acid attack) it was concluded that the samples have similar value ranging from 9 to 26%. The compressive strength of the mortars have a range between 1.36 and 4.55 MPa, which is related to the presence of more binder in samples with higher resistance. The chemical and mineralogical analyzes showed that these consist of lime mortars (binder), natural pozzolan and

  17. Propuesta de cambio para el desarrollo de una organización inteligente verde de TI Bancaria, basada en redes inteligentes ecológicas, banca móvil y ética organizacional para la Banca Universal

    Directory of Open Access Journals (Sweden)

    Carlos A. Fernández Bravo

    2011-11-01

    Full Text Available Esta investigación presenta una propuesta de cambio para el desarrollo de una organización inteligente verde de TI Bancaria, basada en redes inteligentes ecológicas, banca móvil y ética organizacional para la Banca Universal. La metodología es de tipo exploratoria y a su vez descriptiva. Se concluye que la Banca Universal debe asegurar la participación activa del sector financiero con los gobiernos y las organizaciones no gubernamentales para desarrollar y perfeccionar las leyes y los estándares ambientales tanto en leyes nacionales como en acuerdos internacionales. Así mismo, promover el desarrollo de iniciativas voluntarias que incluyan aspectos sociales, ambientales y económicos del desarrollo sostenible y que tengan por objetivo fundamental mejorar la calidad de vida. Se plantean lineamientos estratégicos que enfatizan la necesidad de una adecuada gestión de tecnología de información y comunicación, para integrar a las estrategias ecológicas, sustentadas en ética y herramientas verdes que proporcionen vida a la humanidad

  18. From introduced American weed to Cape Verde Islands endemic: the case of Solanum rigidum Lam. (Solanaceae, Solanum subgenus Leptostemonum).

    Science.gov (United States)

    Knapp, Sandra; Vorontsova, Maria S

    2013-01-01

    A Solanum species long considered an American introduction to the Cape Verde Islands off the west coast of Africa is identified as Solanum rigidum, a member of the Eggplant clade of Old World spiny solanums (Solanum subgenus Leptostemonum) and is probably endemic to the Cape Verde Islands. Collections of this species from the Caribbean are likely to have been introduced from the Cape Verde Islands on slave ships. We discuss the complex nomenclatural history of this plant and provide a detailed description, illustration and distribution map. The preliminary conservation status of Solanum rigidum is Least Concern, but needs to be reassessed in light of its endemic rather than introduced status.

  19. Larvicidal activity against Aedes aegypti of Foeniculum vulgare essential oils from Portugal and Cape Verde.

    Science.gov (United States)

    Rocha, Diara Kady; Matosc, Olivia; Novoa, Maria Teresa; Figueiredo, Ana Cristina; Delgado, Manuel; Moiteiro, Cristina

    2015-04-01

    Dengue is a potentially fatal mosquito-borne infection with 50 million cases per year and 2.5 billion people vulnerable to the disease. This major public health problem has recurrent epidemics in Latin America and occurred recently in Cape Verde and Madeira Island. The lack of anti-viral treatment or vaccine makes the control of mosquito vectors a high option to prevent virus transmission. Essential oil (EO) constituents can affect insect's behaviour, being potentially effective in pest control. The present study evaluated the potential use of Foenicultm vulgare (fennel) EO in the control of the dengue vector Aedes aegypti. EOs isolated from fennel aerial parts collected in Cape Verde and from a commercial fennel EO of Portugal were analysed by NMR, GC and GC-MS. trans-Anethole (32 and 30%, respectively), limonene (28 and 18%, respectively) and fenchone (10% in both cases) were the main compounds identified in the EOs isolated from fennel from Cape Verde and Portugal, respectively. The larvicidal activity of the EOs and its major constituents were evaluated, using WHO procedures, against third instar larvae ofAe. aegypti for 24 h. Pure compounds, such as limonene isomers, were also assayed. The lethal concentrations LC50, C90 and LC99 were determined by probit analysis using mortality rates of bioassays. A 99% mortality of Ae. aegypti larvae was estimated at 37.1 and 52.4 µL L-1 of fennel EOs from Cape Verde and Portugal, respectively. Bioassays showed that fennel EOs from both countries displayed strong larvicidal effect against Ae. aegypti, the Cape Verde EO being as active as one of its major constituents, (-)-limonene.

  20. Caracterización del sistema agrosilvopastoril en la Depresión Central de Chiapas

    Directory of Open Access Journals (Sweden)

    N. Ramírez-Marcial

    2012-01-01

    Full Text Available A través de talleres participativos, se analizó la importancia de algunos árboles para el manejo de los sistemas productivos en una comunidad zoque, del municipio de Ocozocuautla de Espinosa, Chiapas (México. En cinco unidades de producción se establecieron al azar tres parcelas concéntricas de 10, 100 y 1,000 m2, para cuantificar, respectivamente, el número de plántulas (individuos menores de un m de altura, juveniles (individuos 10 cm DAP. De 59 especies de árboles presentes en la localidad, se identificaron 28 de ellas en los sistemas silvopastoriles y hasta ocho tipos de uso, siendo la leña el más importante y Acacia pennatula la especie más utilizada. La densidad de plántulas en los potreros fue de 1.05 ± 0.45 ind/m2, la de juveniles (333 ± 11 ind/ha y la de árboles adultos (71 ±6 ind/ha. Para la alimentación del ganado se promueven varios zacates, siendo el brizantha (Brachiaria brizantha el más extendido (92%. En función de la disponibilidad de forraje, los productores permiten el acceso del ganado a áreas arboladas de donde, además, extraen leña, madera y abono. La mayor dominancia de A. pennatula en los potreros se explica por la dispersión del ganado de las semillas de esta especie que, al ser colonizadora de hábitats abiertos, puede establecerse con relativa facilidad y con la menor inversión de mano de obra y en condiciones de baja presión de pastoreo, lo cual acelera el proceso de regeneración del bosque tropical caducifolio.

  1. GESTÃO DO RISCO E POLÍTICAS PÚBLICAS: política de habitação em Cabo Verde

    Directory of Open Access Journals (Sweden)

    Ana Mafalda Rodrigues

    2016-03-01

    derechos humanos en el gobierno de la ciudad, que se traducen en la gestión y las políticas públicas para extinguir las desigualdades sociales, las prácticas de discriminación en todas las formas de segregación individuales, grupos sociales y comunidades, debido a el tipo de vivienda y asentamientos ubicación de su vida. Consciente de la importancia del estudio de las políticas públicas para entender los fenómenos sociales, la política de Habitación de Interés Social estudio permite la predicción del impacto que las acciones del Estado a la sociedad y abre el camino a la creación de nuevos modelos que pueden ayudar tanto el Estado como la sociedad para el proceso de formulación, implementación y evaluación de esa misma política, como otras que puedan intersecta. Sobre la base de una búsqueda bibliográfica y análisis de documentos, desde la comprensión del concepto de gestión de riesgos, la política pública, la vulnerabilidad social y Vivienda de Interés Social, este ensayo busca en la identificación estrategia, los actores, los instrumentos y los significados de implementación de su política de Cabo Verde; identificar objetivamente las medidas preventivas para la reducción del riesgo asociado a la vivienda y la consecuente vulnerabilidad social, y para reconocer las dificultades de forma inerte a su implementación. Palabras clave: Cabo Verde; Gestión de Riesgos; Políticas Públicas; Política de Habitación.

  2. El Papel de la Agricultura Familiar para la Diversificación y Valorización de la Producción de Alimentos Después de la Revolución Verde en Brasil

    Directory of Open Access Journals (Sweden)

    Alexandrina Benjamin Estevão de Farias

    2016-10-01

    Full Text Available Ese artigo pretende hacer una análisis de la cuestión de la producción de alimentos, después la revolución verde, y la eficacia del derecho a la alimentación en el país. A partir de los años 60, la modernización del campo a mantenido el modelo de los latifundios y del monocultivo en el escenario agrícola brasileiro y excluyendo la agricultura familiar del acceso a las nuevas tecnologías. Con eso, hubo una alteración en el modelo productivo de alimentos, reduciendo la diversidad de productos y comprometiendo el desarrollo de la relación hombre-alimento- sociedad. Considerando que, el modo de producción de alimentos tiene ligación directa a la relación del hombre con su medio y con la cultura en la cual está inmerso. Así, la agricultura familiar consistiría en una manera de explotación capaz de adaptar y persistir en ambientes con el predominio de las prácticas de naturaleza capitalista, así como es capaz de si adaptar a las nuevas exigencias de la sociedad (efectividad del derecho a la alimentación, el desarrollo sostenible agrícola, el combate a la hambre y miseria y la preservación ambiental.

  3. Comparación sensorial del cacao (Theobroma cacao L. Nacional fino de aroma cultivado en diferentes zonas del Ecuador

    Directory of Open Access Journals (Sweden)

    Eddyn Solórzano Chavez

    2015-12-01

    Full Text Available La presente investigación tuvo como objetivo comparar el perfil sensorial de muestras de cacao de varias zonas productoras del país. Con este propósito el Laboratorio de Calidad Integral de Cacao y Chocolate de la Estación Experimental Tropical Pichilingue del INIAP, recibió muestras de 11 asociaciones de productores. Un panel de cinco miembros con experiencia en degustación de pasta de cacao (licor produjo datos para los siguientes componentes del sabor: cacao, acidez, amargor, astringencia, caramelo, floral, frutal, nuez y verde. El análisis comparativo de las muestras se llevó a cabo mediante la prueba no paramétrica de Kruskal & Wallis. El grado de asociación de distintos pares de variables se examinó mediante un análisis correlacional. La relación entre muestras también se exploró mediante el análisis multivariado de componentes principales. Este análisis condujo a la identificación de las variables originales que más aportaron a la varianza de los dos primeros componentes principales. Diferencias estadísticamente significativas entre muestras se detectaron solo para el sabor a cacao. Las correlaciónes más altas se dieron entre las variables frutal y verde, frutal y astringencia, frutal y amargor, y frutal y nuez, la mayoría de signo negativo. Las variables con más aportación a la varianza (35.20% del primer componente principal fueron frutal, verde y amargor. Acidez, floral y nuez hicieron la mayor aportación al segundo componente principal. La aparente estructuración de dos grupos muestrales en el plano definido sugiere semejanzas y diferencias en su perfil sensorial.

  4. Tratamiento de salmueras de fermentación de aceitunas verdes

    Directory of Open Access Journals (Sweden)

    Garrido Fernández, A.

    1992-10-01

    Full Text Available The paper studies the characteristics of the several procedures that might be used to regenerate green table olive fermentation brines with the aim of reusing them in other stages of the elaboration process and specially for the final packaging of these fruits. The reuse may considerably reduce the waste water pollution of the canning industry as brines make up about 80% of the organic pollutant lead of its waste waters. The two most interesting methods are: adsorption with activated carbon, followed by a cross filtration to separate the adsorbent; and ultrafiltration. The former, should be GA activated carbon, which is the most efficient, in a proportion ranging between 5 and 10 g per litre. For the second, a polysulphone 1.000 daltons molecular weight cut membrane at 18 bars pressure should be used. A previous treatment of brines with bentonite (2 g/l, a range of temperatures between 30 and 45°C as well as low suspended solids and polyphenol contents, increases efficiency notably. In principle, an approximate study of costs shows that regenerated brines are obtained, using either of the two procedures, at slightly lower prices than fresh brines prepared from their ingredients.

    El trabajo compara las características de los diversos tratamientos de regeneración aplicables a las salmueras de fermentación de aceitunas verdes estilo sevillano para poderlas reutilizar en otras operaciones dentro del proceso productivo, en especial en el envasado final de los frutos. Con ello, se reduciría el vertido de estas soluciones que son las responsables de la carga contaminante del efluente de estas industrias. Los dos métodos más interesantes son: adsorción con carbón activo, seguido de una filtración tangencial para separar el absorbente; y la ultrafiltración. En el primer caso, el tipo de carbón activo más eficaz es el denominado GA, que necesita ser utilizado en una proporción entre 5 y 10 g por litro. En el segundo una membrana

  5. Atividade das glicosidases na presença de chá verde e de chá preto

    OpenAIRE

    Pereira,L.L.S.; Souza,S.P.; Silva,M.C; Carvalho,G.A.; Santos,C.D.; Corrêa,A.D.; Abreu,C.M.P.

    2010-01-01

    Várias plantas têm sido consideradas produtos terapêuticos, dentre elas destacam-se os chás verde e preto, popularmente utilizados para controle da hiperglicemia e obesidade. Objetivou-se neste trabalho avaliar o potencial inibitório sobre as enzimas α-amilase, α e β-glicosidases e o teor de compostos fenólicos do chá verde e do chá preto. O teor de compostos fenólicos encontrados foram de 80,8 ± 0,43 mg g-1 no chá preto e 32,0 ± 0,12 mg g-1 no chá verde. O chá verde e o chá pr...

  6. Chemometric characterization of alembic and industrial sugar cane spirits from cape verde and ceará, Brazil.

    Science.gov (United States)

    Pereira, Regina F R; Vidal, Carla B; de Lima, Ari C A; Melo, Diego Q; Dantas, Allan N S; Lopes, Gisele S; do Nascimento, Ronaldo F; Gomes, Clerton L; da Silva, Maria Nataniela

    2012-01-01

    Sugar cane spirits are some of the most popular alcoholic beverages consumed in Cape Verde. The sugar cane spirit industry in Cape Verde is based mainly on archaic practices that operate without supervision and without efficient control of the production process. The objective of this work was to evaluate samples of industrial and alembic sugar cane spirits from Cape Verde and Ceará, Brazil using principal component analysis. Thirty-two samples of spirits were analyzed, twenty from regions of the islands of Cape Verde and twelve from Ceará, Brazil. Of the samples obtained from Ceará, Brazil seven are alembic and five are industrial spirits. The components analyzed in these studies included the following: volatile organic compounds (n-propanol, isobutanol, isoamylic, higher alcohols, alcoholic grade, acetaldehyde, acetic acid, acetate); copper; and sulfates.

  7. Impact of Diagenesis on Biosignature Preservation Potential in Playa Lake Evaporites of the Verde Formation, Arizona: Implications for Mars Exploration

    Science.gov (United States)

    Shkolyar, S.; Farmer, J. D.

    2016-05-01

    We studied evaporite subfacies in the Verde Fmn., AZ. We identified diagenetic pathways and assessed how diagenesis affected biosignature preservation potential (BPP) in each. Results revealed eight pathways, each with diverse impacts on BPP.

  8. Chemometric Characterization of Alembic and Industrial Sugar Cane Spirits from Cape Verde and Ceará, Brazil

    Directory of Open Access Journals (Sweden)

    Regina F. R. Pereira

    2012-01-01

    Full Text Available Sugar cane spirits are some of the most popular alcoholic beverages consumed in Cape Verde. The sugar cane spirit industry in Cape Verde is based mainly on archaic practices that operate without supervision and without efficient control of the production process. The objective of this work was to evaluate samples of industrial and alembic sugar cane spirits from Cape Verde and Ceará, Brazil using principal component analysis. Thirty-two samples of spirits were analyzed, twenty from regions of the islands of Cape Verde and twelve from Ceará, Brazil. Of the samples obtained from Ceará, Brazil seven are alembic and five are industrial spirits. The components analyzed in these studies included the following: volatile organic compounds (n-propanol, isobutanol, isoamylic, higher alcohols, alcoholic grade, acetaldehyde, acetic acid, acetate; copper; and sulfates.

  9. O sistema de animação Web da Rota dos Vinhos Verdes(Norte de Portugal

    Directory of Open Access Journals (Sweden)

    José Luís Reis

    2016-01-01

    Full Text Available The Web animation system of the Vinhos Verdes Route, assists, through a Web based technology platform, individuals to organize visits to places of tourist interest in the Vinhos Verdes Region. The animation system managed the content associated with the route members, the locations that contain services/ activities, the routes, the news and events that constitute a repository of all relevant information inherent to the heritage associated with wine tourism in the Vinhos Verdes Region. The animation system, which includes a Database Management System, interacts with a map‑based Framework of the Google Maps system, and is integrated in the Vinhos Verdes Region Web portal, establishing itself as one of the technical tools used by marketing, particularly to disseminate content, to understand the visitor’s origin and how they navigate in the Web animation system.

  10. Vegetation classification and distribution mapping report Mesa Verde National Park

    Science.gov (United States)

    Thomas, Kathryn A.; McTeague, Monica L.; Ogden, Lindsay; Floyd, M. Lisa; Schulz, Keith; Friesen, Beverly A.; Fancher, Tammy; Waltermire, Robert G.; Cully, Anne

    2009-01-01

    The classification and distribution mapping of the vegetation of Mesa Verde National Park (MEVE) and surrounding environment was achieved through a multi-agency effort between 2004 and 2007. The National Park Service’s Southern Colorado Plateau Network facilitated the team that conducted the work, which comprised the U.S. Geological Survey’s Southwest Biological Science Center, Fort Collins Research Center, and Rocky Mountain Geographic Science Center; Northern Arizona University; Prescott College; and NatureServe. The project team described 47 plant communities for MEVE, 34 of which were described from quantitative classification based on f eld-relevé data collected in 1993 and 2004. The team derived 13 additional plant communities from field observations during the photointerpretation phase of the project. The National Vegetation Classification Standard served as a framework for classifying these plant communities to the alliance and association level. Eleven of the 47 plant communities were classified as “park specials;” that is, plant communities with insufficient data to describe them as new alliances or associations. The project team also developed a spatial vegetation map database representing MEVE, with three different map-class schemas: base, group, and management map classes. The base map classes represent the fi nest level of spatial detail. Initial polygons were developed using Definiens Professional (at the time of our use, this software was called eCognition), assisted by interpretation of 1:12,000 true-color digital orthophoto quarter quadrangles (DOQQs). These polygons (base map classes) were labeled using manual photo interpretation of the DOQQs and 1:12,000 true-color aerial photography. Field visits verified interpretation concepts. The vegetation map database includes 46 base map classes, which consist of associations, alliances, and park specials classified with quantitative analysis, additional associations and park specials noted

  11. Human factors engineering control-room-design review/audit report: Palo Verde Nuclear Generating Station, Arizona Public Service Company

    International Nuclear Information System (INIS)

    Savage, J.W.; Lappa, D.A.

    1981-01-01

    A human factors engineering design review of the Palo Verde control room simulator was performed at the site on September 15 through September 17, 1981. Observed human factors design discrepancies were given priority ratings. This report summarizes the team's observations of the control room design and layout and of the control room operators' interface with the control room environment. A list of the human factors strengths observed in the Palo Verde control room simulator is given

  12. Gobernanza del agua residual en Aguascalientes: captura regulatoria y arreglos institucionales complejos

    Directory of Open Access Journals (Sweden)

    Raul Pacheco-Vega

    2015-01-01

    Full Text Available El manejo de agua en Aguascalientes se ha estudiado desde la perspectiva del suministro, pero no se ha analizado la gobernanza del agua residual. En este artículo se examina el manejo de efluentes del municipio de Aguascalientes utilizando las teorías del neoinstitucionalismo histórico, de la gobernanza y de la captura regulatoria. Se explica los factores que han influido en la operación reciente (2010-2013 del tratamiento y reuso de agua municipal. El análisis está fundamentado en los debates contemporáneos sobre priva - tización del recurso hídrico, y enfocado en el periodo de la administración priista de Lorena Martínez, y sus proyectos emblemáticos: Línea Verde y Líneas Moradas.

  13. Estudios ecológicos en el Páramo de Cruz Verde, Colombia II. Las comunidades vegetales Estudios ecológicos en el Páramo de Cruz Verde, Colombia II. Las comunidades vegetales

    Directory of Open Access Journals (Sweden)

    Lozano Contreras Gustavo

    1976-09-01

    Full Text Available Im Páramo de Cruz Verde, Cundinamarca, Kolumbien (3.400m Höhe werden auf Grund pflanzensoziologischer Untersuchungen mehrere Pflanzengemeinschaften unterschieden. Am verbreitetsten sind solche, die ihre Existenz anthropogenen Einflüssen verdanken und sich unter diesen stabilisiert haben; sie werden als Subklimax-Gesellschaften aufgefaΒt und zeichnen sich durch ihre geringe Empfindlichkeit gegen gelegentliche Brände aus. Hierzu sind zu rechnen: eine Calamagrostis effusa - Espeletia grandiflora - Geranium santanderiense - Gesellschaft, eine Calamagrostis effusa - Espeletia grandiflora - Geranium multiceps - Gesellschaft, eine Calamagrostis effusa - Spiranthes vaginata - Gesellschaft, eine Calamagrostis effusa «Espeletia corymbosa - Gesellschaft und eine Calamagrostis effusa - Altesteinia fimbriata - Gesellschaft.In Gebieten, deren Vegetation durch natürliche (z. B. Erdrutsche oder anthropogene Einflüsse (z, B. vorübergehender Ackerbau zerstört wurde, stellen sich Pionier-Gesellschaften mit Espeletia argentea ein.  Da in allen unterschiedenen Subklimax-Gesellschaften Baum - undBusch-Arten vorkommen, die für kleinere Busch waldbestände typisch sind, werden letztere als Reste einer Klimax-Vegetation angesehen, die nur an ständig sumpfigen Stellen durch eine Diplostephium revolutum Gesell-schaft ersetzt wird. Letztere ist noch heute an vielen Stellen erhalten; sie wird wenigstens teilweise als Endstadium einer Sukzessionsreihe angesehen,die während der Verlandung von kleinen Seen (meist glazialer Herkunft auftrat.  Als wesentliche Ursachen der räumlichen Verteilung der heute dominierenden Subklimax-Gesellschaften werden die örtlich unterschiedlich stark schwankenden Bodenwassergehalte diskutiert.En el Páramo de Cruz Verde, Cundinamarca, Colombia (3.400 m de altura se distinguen varias comunidades vegetales con base en estudios fitosociológicos. Distribución más amplia tienen aquellas que deben su existencia a las influencias

  14. Plan verde: un instrumento para la gestión y fomento de áreas verdes en el gran Santiago

    Directory of Open Access Journals (Sweden)

    Claudio Nilo Orellana

    2003-09-01

    Full Text Available La ciudad de Santiago, cuenta con una importante falencia de espacios verdes. La Organización Mundial de la Salud (OMS recomienda que las ciudades tengan 9 metros cuadrados por habitante. Por su parte, el Plan de Prevención y Descontaminación para la Región Metropolitana (PPDA se ha propuesto como meta lograr que el área Metropolitana logre un promedio de 6 metros cuadrados por habitante.

  15. Modernization of electric power systems of the Laguna Verde Nuclear Power Plant; Modernizacion de los sistemas electricos de potencia de la Central Nuclear de Laguna Verde

    Energy Technology Data Exchange (ETDEWEB)

    Gabaldon, M. A.; Gonzalez, J. J.; Prieto, I.

    2011-07-01

    The Power Increase Project of Laguna Verde Nuclear Plant has entailed the replacement, in one unique outage, of the main power electrical systems of the Plant (Isolated Phase Bars, Generator Circuit Breaker and Main Transformer) as well as the replacement of the Turbo-group. The simultaneous substitution of these entire system has never been done by any other Plant in the world, representing an engineering challenge that embraced the design of the new equipment up to the planning, coordination and management of the construction and commissioning works, which were successfully carried out by Iberdrola within the established outage period /47 days) for both units. (Author)

  16. Corredores verdes urbanos: estudo da viabilidade de conexão das áreas verdes de Vitória

    Directory of Open Access Journals (Sweden)

    Homero Marconi Penteado

    2007-12-01

    Full Text Available Grande parte dos profissionais de planejamento urbano tem buscado melhorar a qualidade de vida da população e a aplicação de princípios de sustentabilidade, que se refletem, na maioria dos casos, na busca de ampliação das áreas verdes, sejam na forma de parques, praças, arborização de vias ou mesmo incentivo aos jardins particulares. Esta pesquisa apresenta o resultado do estudo de viabilidade de criação de corredores verdes urbanos na cidade de Vitória, estabelecendo uma rede de conexões utilizando-se de sua malha viária, visando incrementar as condições ecológicas e paisagísticas urbanas e melhores condições de circulação de pedestres e ciclistas. Está alicerçada nos conceitos desenvolvidos pela ecologia da paisagem, baseada em fragmentos, corredores e matriz. A metodologia adotada foi aplicada em uma área teste, onde foram realizados levantamentos preliminares, mapeamento das áreas verdes, seleção de vias para implantação de corredores, avaliação dos possíveis corredores, inventário e análise das vias, diretrizes para estabelecimento dos corredores, ensaio projetual e criação de uma rede de corredores verdes. Dentre os principais resultados, verificou-se a possibilidade de criação de corredores com pequenas modificações nos perfis de vias que permitiriam a inserção de vegetação contínua, calçadas e ciclovias com consequências diretas (otimização das condições microclimáticas, melhoria na paisagem, atratividade para pequenos animais, incentivo ao percurso não motorizado, entre outros e indiretas (redução das partículas em suspensão, redução dos níveis de ruído e do consumo de combustíveis etc..

  17. Sinfonía en verde y azul

    Directory of Open Access Journals (Sweden)

    Javier Moscarella

    1982-10-01

    Full Text Available La rica región esmeraldífera de Muzo, ha dado inmenso prestigio a Colombia en el exterior: las esmeraldas que allí se han encontrado son las más hermosas del mundo y sus tamaños han superado muchas veces la imaginación de las mentes más afiebradas; pero no solo las esmeraldas han hecho famoso el nombre de la provincia de Muzo, se encuentran allí también unas mariposas de singular belleza y colorido que han cautivado la atención de algunos importantes poetas latinoamericanos.

  18. La proteína verde fluorescente ilumina la biociencia The Green Fluorescent Protein that glows in Bioscience

    Directory of Open Access Journals (Sweden)

    María Inés Pérez Millán

    2009-06-01

    Full Text Available La proteína verde fluorescente (o GFP, por sus siglas en inglés, Green Fluorescent Protein es una proteína producida por la medusa Aequorea victoria que emite bioluminiscencia en la zona verde del espectro visible. El gen que codifica esta proteína ha sido clonado y se utiliza habitualmente en biología molecular como marcador. Los descubrimientos relacionados a la GFP merecieron el Premio Nobel de Química 2008, en conjunto a los tres investigadores, Dres Shimomura, Chalfie y Tsien que participaron escalonadamente en dilucidar la estructura y función de la proteína. El Dr. Shimomura descubrió y estudió las propiedades de GFP, el Dr. Chalfie usando técnicas de biología molecular logró introducir el gen que codificaba para la GFP en el ADN del gusano transparente C. elegans, e inició la era de GFP como marcador de procesos en células y organismos. Finalmente el Dr. Tsien modificó la estructura de la proteína para producir moléculas que emiten luz a distintas longitudes de onda, extendiendo la paleta de colores de las proteínas. Las proteínas fluorescentes, entre las cuales se encuentra la GFP, son muy versátiles y se utilizan en diversos campos como la microbiología, ingeniería genética, fisiología, e ingeniería ambiental. Permiten ver procesos previamente invisibles, como el desarrollo de neuronas, cómo se diseminan las células cancerosas, o la contaminación de agua con arsénico, por mencionar algunos usos. Con la obtención de proteínas de muchos colores complejas redes biológicas pueden ser marcadas diferencialmente, lo que permite visualizar la biología celular en acción.Green fluorescent protein (GFP is a protein produced by the jellyfish Aequorea victoria, that emits bioluminescence in the green zone of the visible spectrum. The GFP gene has been cloned and is used in molecular biology as a marker. The three researchers that participated independently in elucidating the structure and function of this and its

  19. Entomología forense: el ciclo de vida de la mosca verde Phaenicia eximia (Wiedemann (Diptera: Calliphoridae, como herramienta para estimar el intervalo post-mortem

    Directory of Open Access Journals (Sweden)

    Enio B. Cano

    2017-03-01

    Full Text Available Se estudió el ciclo de vida de la mosca verde Phaenicia eximia (Wiedemann en condiciones controladas de laboratorio a 26 o C, con una humedad relativa de 75% y un período de iluminación de 12 h de luz y 12 h de oscuridad. El tiempo promedio de desarrollo estimado desde la oviposición hasta la salida de los adultos fue de 306 h (una media de casi 13 días. Bajo estas condiciones de temperatura y humedad, los huevos duran cerca de 19 h (0.8 días, las larvas duran unas 170 h (7.1 días y las pupas unas 116 h (4.8 días. En los meses secos y fríos de noviembre y diciembre en condiciones naturales, el ciclo de vida empírico fue de 25 días, implicando que las bajas temperaturas ralentizan el crecimiento y las altas lo aceleran. Se discute acerca de la importancia del ciclo de vida en la estimación del intervalo post-mortem en casos de muertes violentas en Guatemala.

  20. An 40 Ar- 39 Ar study of the Cape Verde hot spot

    DEFF Research Database (Denmark)

    Holm, Paul Martin; Grandvuinet, Tanja; Wilson, James Richard

    2008-01-01

    The 40Ar-39Ar analyses of 28 groundmass separates from volcanic rocks from the islands of Santiago, Sal, and São Vicente, Cape Verde archipelago, are presented. The new age data record the volcanic evolution for Santiago from 4.6 to 0.7 Ma, for Sal from around 15 to 1.1 Ma, and for São Vicente from...... Cretaceous age for limestones deposited on the seafloor and later uplifted. The Cape Verde Rise is indicated to have fully formed in the early Miocene around 22 Ma, accompanied by the initial alkaline volcanism. Considerable volcanism on Sal, Boa Vista, and Maio took place in the Miocene and Pliocene...

  1. Seismic qualification tests of fans of the NPP of Laguna Verde U-1 and U-2

    International Nuclear Information System (INIS)

    Jarvio C, G.; Garcia H, E. E.; Arguelles F, R.; Vela H, A.; Naranjo U, J. L.

    2013-10-01

    This work presents the results of the seismic qualification tests applied to the fans that will be installed in the control panels of the three divisions of the diesel generators of the nuclear power plant (NPP) of Laguna Verde, Unit-1 and Unit-2. This seismic qualification process of the fans was carried out using two specimens that were tested in the seismic table (vibrating) of the Engineering Institute of Universidad Nacional Autonoma de Mexico (UNAM), in accordance with the requirements of the standard IEEE 344-1975, to satisfy the established requirements of seismic qualification in the technical specifications and normative documents required by the nuclear standards, in order to demonstrate its application in the diesel generators Divisions I, II and III of the NPP. The seismic qualification tests were developed on specimens that were retired of the NPP of Laguna Verde recently with a service life of 7.75 years. (Author)

  2. Start up and commercial operation of Laguna Verde nuclear power plant. Unit 1

    International Nuclear Information System (INIS)

    Torres Ramirez, J.F.

    1991-01-01

    Prior to start up of Laguna Verde nuclear power plant preoperational tests and start tests were performed and they are described in its more eminent aspects. In relation to commercial operation of nuclear station a series of indicator were set to which allow the measurement of performance in unit 1, in areas of plant efficiency and personal safety. Antecedents. Laguna Verde station is located in Alto Lucero municipality in Veracruz state, 70 kilometers north-northeast from port of Veracruz and a 290 kilometers east-northeast from Mexico city. The station consist of two units manufactured by General Electric, with a nuclear system of vapor supply also called boiling water (BWR/5), and with a system turbine-generator manufactured by Mitsubishi. Each unit has a nominal power of 1931 MWt and a level design power of 675 Mwe and a net power of 654 Electric Megawatts

  3. Analysis of internal events for the Unit 1 of the Laguna Verde Nuclear Power Station. Appendixes

    International Nuclear Information System (INIS)

    Huerta B, A.; Lopez M, R.

    1995-01-01

    This volume contains the appendices for the accident sequences analysis for those internally initiated events for Laguna Verde Unit 1, Nuclear Power Plant. The appendix A presents the comments raised by the Sandia National Laboratories technical staff as a result of the review of the Internal Event Analysis for Laguna Verde Unit 1 Nuclear Power Plant. This review was performed during a joint Sandia/CNSNS multi-day meeting by the end 1992. Also included is a brief evaluation on the applicability of these comments to the present study. The appendix B presents the fault tree models printed for each of the systems included and.analyzed in the Internal Event Analysis for LVNPP. The appendice C presents the outputs of the TEMAC code, used for the cuantification of the dominant accident sequences as well as for the final core damage evaluation. (Author)

  4. Analysis of internal events for the Unit 1 of the Laguna Verde Nuclear Power Station. Appendixes

    International Nuclear Information System (INIS)

    Huerta B, A.; Lopez M, R.

    1995-01-01

    This volume contains the appendices for the accident sequences analysis for those internally initiated events for Laguna Verde Unit 1, Nuclear Power Plant. The appendix A presents the comments raised by the Sandia National Laboratories technical staff as a result of the review of the Internal Event Analysis for Laguna Verde Unit 1 Nuclear Power Plant. This review was performed during a joint Sandia/CNSNS multi-day meeting by the end 1992. Also included is a brief evaluation on the applicability of these comments to the present study. The appendix B presents the fault tree models printed for each of the systems included and analyzed in the Internal Event Analysis for LVNPP. The appendice C presents the outputs of the TEMAC code, used for the cuantification of the dominant accident sequences as well as for the final core damage evaluation. (Author)

  5. X-chromosome STR markers data in a Cabo Verde immigrant population of Lisboa.

    Science.gov (United States)

    Afonso Costa, Heloísa; Morais, Paulo; Vieira da Silva, Cláudia; Matos, Sara; Marques Santos, Rodolfo; Espinheira, Rosa; Costa Santos, Jorge; Amorim, António

    2014-01-01

    Population genetic data of 12 X chromosomal short tandem repeats markers (DXS10074, DXS10079, DXS10101, DXS10103, DXS10134, DXS10135, DXS10146, DXS10148, DXS7132, DXS7423, DXS8378 and HPRTB) were analysed in 54 females and 95 males of an immigrant population from Cabo Verde living in Lisboa. The obtained results for forensic statistical parameters such as observed heterozigosity, polymorphism information content, power of discrimination and mean exclusion chance, based on single allele frequencies, reveal that this multiplex system is highly informative and can represent an important tool for genetic identification purposes in the immigrant population of Cabo Verde. Since the studied short tandem repeats genetic markers are distributed on four linkage groups, that can provide independent genotype information, we studied those groups as haploytes. The forensic efficiency parameters for the linked groups were all higher than 0.97, with linkage group I being the most polymorphic and linkage group III the less informative.

  6. Respuesta productiva de conejos alimentados con forraje verde hidropónico de avena, como reemplazo parcial de concentrado comercial

    Directory of Open Access Journals (Sweden)

    Poblete Pérez Cecilia Eva

    2011-06-01

    Full Text Available La respuesta productiva de conejos raza californiana alimentados con forraje verde hidropónico (FVH deavena como reemplazo parcial de concentrado comercial (CC, fue evaluada en condiciones de desiertoen el norte de Chile. Se establecieron cinco tratamientos de alimentación, equivalentes a 0, 25, 50, 75 y100% de reemplazo de la dieta diaria con FVH, el cual fue cosechado y utilizado directamente diez díasdespués de la siembra. Cuarenta y cinco conejos destetados a los 31 días fueron evaluados en un diseñocompletamente al azar hasta alcanzar un peso de sacrificio de 2 kg de peso vivo. La calidad del FVH deavena fue considerada como buena, presentando similar valor nutritivo que el CC. Las variables evaluadasy sus respectivos rangos fueron: consumo de materia seca promedio (59.17 - 104.73 g/día, gananciade peso vivo promedio (16.35 - 29.10 g/animal por día, conversión alimenticia promedio (3.31 - 3.93 kgMS/kg PV, tiempo de peso vivo a sacrificio (53 - 91 días, peso vivo final (1430 - 2044 g/animal, pesode la canal (1235 - 1385 g/animal y rendimiento de la canal (59.19 - 62.25%. El reemplazo de hasta50% de la dieta base con FVH de avena no afectó significativamente (P ≤ 0.05 el consumo de alimento,tiempo de peso vivo a sacrificio, peso vivo final y rendimiento de la canal, haciendo posible su uso comorecurso forrajero alternativo en la alimentación de conejos en etapa de engorde en condiciones de desierto.

  7. Peces del Noroeste del Ecuador

    OpenAIRE

    Barriga, Ramiro

    1994-01-01

    La ictiofauna del occidente del Ecuador es poco conocida. Los peces del noroccidente son diferentes a los del suroccidente del Ecuador. 34 familias y 82 especies fueron colectadas que equivale al 11 % de las especies de peces continentales registradas en el Ecuador. Icteogeográficamente se sabe que la costa ecuatoriana posee dos provincias: la del Pacifico Norte y la del Guayas, se determinó que el límite de las dos provincias es el río Santiago ya que las especies del mencionado río so...

  8. Characterization of Mesa Verde Black-on-white ceramics from southwestern Colorado using NAA

    Energy Technology Data Exchange (ETDEWEB)

    Glowacki, D M; Neff, H; Glascock, M D [Missouri Univ., Columbia, MO (United States). Research Reactor Facility

    1995-10-01

    Sixty Mesa Verde variety Black-on-white bowls from Castle Rock Pueblo (5MT 1825) and Sand Canyon Pueblo (5MT765) in southwestern Colorado were chemically characterized using neutron activation analysis. Eleven clay sources local to the sites in the McElmo Drainage area were also analyzed. The results revealed two distinct compositional groups containing relative frequencies that imply local production. The occurrence of trade between the two sites was also identified. (author). 20 refs., 5 figs., 2 tabs.

  9. Risk-based inservice testing program modifications at Palo Verde nuclear generating station

    Energy Technology Data Exchange (ETDEWEB)

    Knauf, S.; Lindenlaub, B.; Linthicum, R.

    1996-12-01

    Arizona Public Service Company (APS) is investigating changes to the Palo Verde Inservice Testing (IST) Program that are intended to result in the reduction of the required test frequency for various valves in the American Society of Mechanical Engineers (ASME) Section XI IST program. The analytical techniques employed to select candidate valves and to demonstrate that these frequency reductions are acceptable are risk based. The results of the Palo Verde probabilistic risk assessment (PRA), updated in June 1994, and the risk significant determination performed as part of the implementation efforts for 10 CFR 50.65 (the maintenance rule) were used to select candidate valves for extended test intervals. Additional component level evaluations were conducted by an `expert panel.` The decision to pursue these changes was facilitated by the ASME Risk-Based Inservice Testing Research Task Force for which Palo Verde is participating as a pilot plant. The NRC`s increasing acceptance of cost beneficial licensing actions and risk-based submittals also provided incentive to seek these changes. Arizona Public Service is pursuing the risk-based IST program modification in order to reduce the unnecessary regulatory burden of the IST program through qualitative and quantitative analysis consistent with maintaining a high level of plant safety. The objectives of this project at Palo Verde are as follows: (1) Apply risk-based technologies to IST components to determine their risk significance (i.e., high or low). (2) Apply a combination of deterministic and risk-based methods to determine appropriate testing requirements for IST components including improvement of testing methods and frequency intervals for high-risk significant components. (3) Apply risk-based technologies to high-risk significant components identified by the {open_quotes}expert panel{close_quotes} and outside of the IST program to determine whether additional testing requirements are appropriate.

  10. Patterns of genetic diversity in three plant lineages endemic to the Cape Verde Islands.

    Science.gov (United States)

    Romeiras, Maria M; Monteiro, Filipa; Duarte, M Cristina; Schaefer, Hanno; Carine, Mark

    2015-05-15

    Conservation of plant diversity on islands relies on a good knowledge of the taxonomy, distribution and genetic diversity of species. In recent decades, a combination of morphology- and DNA-based approaches has become the standard for investigating island plant lineages and this has led, in some cases, to the discovery of previously overlooked diversity, including 'cryptic species'. The flora of the Cape Verde archipelago in the North Atlantic is currently thought to comprise ∼740 vascular plant species, 92 of them endemics. Despite the fact that it is considered relatively well known, there has been a 12 % increase in the number of endemics in the last two decades. Relatively few of the Cape Verde plant lineages have been included in genetic studies so far and little is known about the patterns of diversification in the archipelago. Here we present an updated list for the endemic Cape Verde flora and analyse diversity patterns for three endemic plant lineages (Cynanchum, Globularia and Umbilicus) based on one nuclear (ITS) and four plastid DNA regions. In all three lineages, we find genetic variation. In Cynanchum, we find two distinct haplotypes with no clear geographical pattern, possibly reflecting different ploidy levels. In Globularia and Umbilicus, differentiation is evident between populations from northern and southern islands. Isolation and drift resulting from the small and fragmented distributions, coupled with the significant distances separating the northern and southern islands, could explain this pattern. Overall, our study suggests that the diversity in the endemic vascular flora of Cape Verde is higher than previously thought and further work is necessary to characterize the flora. Published by Oxford University Press on behalf of the Annals of Botany Company.

  11. Risk-based inservice testing program modifications at Palo Verde nuclear generating station

    International Nuclear Information System (INIS)

    Knauf, S.; Lindenlaub, B.; Linthicum, R.

    1996-01-01

    Arizona Public Service Company (APS) is investigating changes to the Palo Verde Inservice Testing (IST) Program that are intended to result in the reduction of the required test frequency for various valves in the American Society of Mechanical Engineers (ASME) Section XI IST program. The analytical techniques employed to select candidate valves and to demonstrate that these frequency reductions are acceptable are risk based. The results of the Palo Verde probabilistic risk assessment (PRA), updated in June 1994, and the risk significant determination performed as part of the implementation efforts for 10 CFR 50.65 (the maintenance rule) were used to select candidate valves for extended test intervals. Additional component level evaluations were conducted by an 'expert panel.' The decision to pursue these changes was facilitated by the ASME Risk-Based Inservice Testing Research Task Force for which Palo Verde is participating as a pilot plant. The NRC's increasing acceptance of cost beneficial licensing actions and risk-based submittals also provided incentive to seek these changes. Arizona Public Service is pursuing the risk-based IST program modification in order to reduce the unnecessary regulatory burden of the IST program through qualitative and quantitative analysis consistent with maintaining a high level of plant safety. The objectives of this project at Palo Verde are as follows: (1) Apply risk-based technologies to IST components to determine their risk significance (i.e., high or low). (2) Apply a combination of deterministic and risk-based methods to determine appropriate testing requirements for IST components including improvement of testing methods and frequency intervals for high-risk significant components. (3) Apply risk-based technologies to high-risk significant components identified by the open-quotes expert panelclose quotes and outside of the IST program to determine whether additional testing requirements are appropriate

  12. Fuel failure at the Laguna Verde unit 1- during Cycle 4

    International Nuclear Information System (INIS)

    Espinosa Vega, Juan Manuel

    1996-01-01

    The present work describes the event occurred at the Laguna Verde nuclear power plants Unit 1 during its fourth cycle ensembles; the first failure, by means of a test of power suppression, and the second one, during the sipping accomplished in the four refuelling of the unit. Also it describes the re-evaluation of the event accomplished by the licenser, the manufacturer and the Mexican agency

  13. Possible effects of groundwater pumping on surface water in the Verde Valley, Arizona

    Science.gov (United States)

    Leake, Stanley A.; Haney, Jeanmarie

    2010-01-01

    The U.S. Geological Survey (USGS), in cooperation with The Nature Conservancy, has applied a groundwater model to simulate effects of groundwater pumping and artificial recharge on surface water in the Verde Valley sub-basin of Arizona. Results are in two sets of maps that show effects of locations of pumping or recharge on streamflow. These maps will help managers make decisions that will meet water needs and minimize environmental impacts.

  14. Preliminary synthesis and assessment of environmental flows in the middle Verde River watershed, Arizona

    Science.gov (United States)

    Paretti, Nicholas; Brasher, Anne M. D.; Pearlstein, Susanna L.; Skow, Dena M.; Gungle, Bruce W.; Garner, Bradley D.

    2018-05-15

    A 3-year study was undertaken to evaluate the suitability of the available modeling tools for characterizing environmental flows in the middle Verde River watershed of central Arizona, describe riparian vegetation throughout the watershed, and estimate sediment mobilization in the river. Existing data on fish and macroinvertebrates were analyzed in relation to basin characteristics, flow regimes, and microhabitat, and a pilot study was conducted that sampled fish and macroinvertebrates and the microhabitats in which they were found. The sampling for the pilot study took place at five different locations in the middle Verde River watershed. This report presents the results of this 3-year study. The Northern Arizona Groundwater Flow Model (NARGFM) was found to be capable of predicting long-term changes caused by alteration of regional recharge (such as may result from climate variability) and groundwater pumping in gaining, losing, and dry reaches of the major streams in the middle Verde River watershed. Over the period 1910 to 2006, the model simulated an increase in dry reaches, a small increase in reaches losing discharge to the groundwater aquifer, and a concurrent decrease in reaches gaining discharge from groundwater. Although evaluations of the suitability of using the NARGFM and Basin Characteristic Model to characterize various streamflow intervals showed that smallerscale basin monthly runoff could be estimated adequately at locations of interest, monthly stream-flow estimates were found unsatisfactory for determining environmental flows.Orthoimagery and Moderate Resolution Imaging Spectroradiometer data were used to quantify stream and riparian vegetation properties related to biotic habitat. The relative abundance of riparian vegetation varied along the main channel of the Verde River. As would be expected, more upland plant species and fewer lowland species were found in the upper-middle section compared to the lower-middle section, and vice

  15. Insecticide susceptibility of Aedes aegypti populations from Senegal and Cape Verde Archipelago.

    Science.gov (United States)

    Dia, Ibrahima; Diagne, Cheikh Tidiane; Ba, Yamar; Diallo, Diawo; Konate, Lassana; Diallo, Mawlouth

    2012-10-22

    Two concomitant dengue 3 (DEN-3) epidemics occurred in Cape Verde Archipelago and Senegal between September and October 2009. Aedes aegypti was identified as the vector of these epidemics as several DEN-3 virus strains were isolated from this species in both countries. The susceptibility to pyrethroids, organochlorine, organophosphates and carbamate was investigated in two field strains of Aedes aegypti from both countries using WHO diagnostic bioassay kits in order to monitor their the current status of insecticide susceptibility. The two tested strains were highly resistant to DDT. The Cape Verde strain was found to be susceptible to all others tested insecticides except for propoxur 0.1%, which needs further investigation. The Dakar strain was susceptible to fenitrothion 1% and permethrin 0.75%, but displayed reduced susceptibility to deltamethrin, lambda-cyhalothrin and propoxur. As base-line results, our observations stress a careful management of insecticide use for the control of Ae. aegypti. Indeed, they indicate that DDT is no longer efficient for the control of Ae. aegypti populations in Cape Verde and Dakar and further suggest a thorough follow-up of propoxur susceptibility status in both sites and that of deltamethrin and lambda-cyhalothrin in Ae. aegypti populations in Dakar. Thus, regular monitoring of susceptibility is greatly needed as well as the knowing if this observed resistance/susceptibility is focal or not and for observed resistance, the use of biochemical methods is needed with detailed comparison of resistance levels over a large geographic area. Aedes aegypti, Insecticides, Susceptibility, Cape Verde, Senegal.

  16. The Impacts of Urban Politics on Female Street Vendors in Praia, Cape Verde

    OpenAIRE

    Pólvora, Jacqueline Britto

    2015-01-01

    Departing from transformations that are taking place on the space of the Plateau in Praia, Cape Verde, this paper discusses how these transformations are affecting the daily and working lives of the female street vendors in the city. It is an ethnographic study conducted with the ladies, also taking into account official data available from the institutional offices in Praia. It focuses on the tensions and disputes around the space, given significant changes that have been promoted by the ...

  17. Proposal for implementation of alternative source term in the nuclear power plant of Laguna Verde

    International Nuclear Information System (INIS)

    Bazan L, A.; Lopez L, M.; Vargas A, A.; Cardenas J, J. B.

    2009-10-01

    In 2010 the nuclear power plant of Laguna Verde will implement the extended power upbeat in both units of the plant. Agree with methodology of NEDC-33004P-A, (constant pressure power up rate), and the source term of core, for accidents evaluations, were increased in proportion to the ratio of power level. This means that for the case of a design basis accident of loss of coolant an increase of power of 15% originated an increase of 15% in dose to main control room. Using the method of NEDC-33004P-A to extended power upbeat conditions was determined that the dose value to main control room is very near to regulatory limit established by SRP 6.4. By the above and in order to recover the margin, the nuclear power plant of Laguna Verde will calculate an alternative source term following the criteria established in RG 1.183 (alternative radiological source term for evaluating DBA at nuclear power reactor). This approach also have a more realistic dose value using the criterion of 10-CFR-50.67, in addition is predicted to get the benefit of additional operational flexibilities. This paper present the proposal of implementing the alternative source term in Laguna Verde. (Author)

  18. O chá verde e suas ações como quimioprotetor

    Directory of Open Access Journals (Sweden)

    Wanderlei Schmitz

    2005-12-01

    Full Text Available O chá preto é responsável por 75% do chá consumido no mundo e o chá verde, por apenas 22%. O chá que era consumido como medicamento, passou a ser do gosto popular devido as suas característica organolépticas. Seus componentes flavonóides e catequinas apresentam uma série de atividades biológicas, antioxidante, quimioprotetora, antiinflamatória e anticarcinogênica. Vários estudos vêm sendo desenvolvidos por pesquisadores em varias regiões do mundo para comprovar estas atividades terapêuticas, objetivando compreender os mecanismos de ação do chá verde. Diante do acima citado, esta revisão tem por finalidade apresentar as varias linhas de pesquisa em andamento e os resultados já obtidos sobre o efeito quimioprotetor/antioxidante do chá verde.

  19. Marketing verde e práticas socioambientais nas indústrias do Paraná

    Directory of Open Access Journals (Sweden)

    Valéria Neder Lopes

    2014-03-01

    Full Text Available A preocupação das empresas com o meio ambiente e com todas as questões sociais envolvidas em seu processo tem se tornado uma constante nos últimos tempos. Devido a isso, estão surgindo novas formas de administrar os recursos disponíveis. Nesse contexto, enquadra-se o marketing verde que deve estar pautado em práticas ambientalmente corretas, com o intuito de gerar produtos e serviços mais sustentáveis, fortalecendo a imagem das empresas e diferenciando suas marcas no mercado. O intuito neste trabalho foi verificar se as grandes indústrias do Paraná estão se utilizando das práticas de marketing verde e se mantêm projetos de gestão socioambiental. Para atender a tais objetivos, elaborou-se uma pesquisa descritiva e quantitativa com 48 grandes empresas cadastradas na Federação das Indústrias do Paraná. Os resultados obtidos indicam que a maior parte das empresas possui departamento de marketing formalizado, mantém sistemas de gestão ambiental e utiliza moderadamente práticas de marketing verde.

  20. Improving Access to Pediatric Cardiology in Cape Verde via a Collaborative International Telemedicine Service.

    Science.gov (United States)

    Lapão, Luís Velez; Correia, Artur

    2015-01-01

    This paper addresses the role of international telemedicine services in supporting the evacuation procedures from Cape Verde to Portugal, enabling better quality and cost reductions in the management of the global health system. The Cape Verde, as other African countries, health system lacks many medical specialists, like pediatric cardiologists, neurosurgery, etc. In this study, tele-cardiology shows good results as diagnostic support to the evacuation decision. Telemedicine services show benefits while monitoring patients in post-evacuation, helping to address the lack of responsive care in some specialties whose actual use will help save resources both in provision and in management of the evacuation procedures. Additionally, with tele-cardiology collaborative service many evacuations can be avoided whereas many cases will be treated and followed locally in Cape Verde with remote technical support from Portugal. This international telemedicine service enabled more efficient evacuations, by reducing expenses in travel and housing, and therefore contributed to the health system's improvement. This study provides some evidence of how important telemedicine really is to cope with both the geography and the shortage of physicians.

  1. Impact of Sahara dust transport on Cape Verde atmospheric element particles.

    Science.gov (United States)

    Almeida-Silva, M; Almeida, S M; Freitas, M C; Pio, C A; Nunes, T; Cardoso, J

    2013-01-01

    The objectives of this study were to (1) conduct an elemental characterization of airborne particles sampled in Cape Verde and (2) assess the influence of Sahara desert on local suspended particles. Particulate matter (PM(10)) was collected in Praia city (14°94'N; 23°49'W) with a low-volume sampler in order to characterize its chemical composition by k0-INAA. The filter samples were first weighed and subsequently irradiated at the Portuguese Research Reactor. Results showed that PM(10) concentrations in Cape Verde markedly exceeded the health-based air quality standards defined by the European Union (EU), World Health Organization (WHO), and U.S. Environmental Protection Agency (EPA), in part due to the influence of Sahara dust transport. The PM(10) composition was characterized essentially by high concentrations of elements originating from the soil (K, Sm, Co, Fe, Sc, Rb, Cr, Ce, and Ba) and sea (Na), and low concentrations of anthropogenic elements (As, Zn, and Sb). In addition, the high concentrations of PM measured in Cape Verde suggest that health of the population may be less affected compared with other sites where PM(10) concentrations are lower but more enriched with toxic elements.

  2. Assessment of vibration anomalies of main steam lines at Palo Verde-3

    International Nuclear Information System (INIS)

    Amr, A.; Landstrom, C.; Maxwell, H.; Miller, J.S.; Lynch, J.J.

    1996-01-01

    Historically, flow induced vibration in piping systems that transport liquid has presented problems for plant designers. When evaluating a vibration problem, it is always important to determine the forcing frequencies from different phenomena and the natural frequencies of the system as an integral part of establishing the root cause of the problem. Since in most cases of large vibration and noise levels, the natural frequency of the system and the frequency of the flow induced vibration are very close, determining the natural frequency of the system is important. Palo Verde Unit-3 exhibited a vibration problem where identification of the root cause was difficult. A Palo Verde team was created which consisted of engineers from different on-site departments and support from consultants. The process used to determine the root cause for the vibration/noise problem on Main Steam Supply System (MSSS) steam line 2 at Palo Verde Unit 3 is discussed in this paper. Since the root cause was not readily apparent, a finite element model was constructed to determine the natural frequency of the piping system. The finite element model consisted of a portion of the main steam lines, including a sample line which traverses the main steam line

  3. BENEFÍCIOS DA BIOMASSA DE BANANA VERDE Á SAÚDE HUMANA

    Directory of Open Access Journals (Sweden)

    Vânia Thais Silva Gomes

    2017-03-01

    Full Text Available Este estudo tem por objetivo contextualizar os benefícios da biomassa de banana verde na saúde humana. A pergunta norteadora para a construção desta revisão integrativa foi: qual os benefícios da biomassa de banana verde para a saúde humana? Para a seleção dos estudos, utilizou-se as seguintes bases de dados eletrônicas: SCIELO (Scientific Eletronic Library Online, IBECS (Indice Bibliográfico Español de Ciencias de la Salud, LILACS (Literatura LatinoAmericana e do Caribe em Ciências da Saúde e MEDLINE (Medical Literature Analysis and Retrieval System Online. Concluiu-se que a biomassa da banana verde apresenta uma boa quantidade de nutrientes, vitaminas, fibras, o preparo é rápido e fácil, e o custo é acessível. É considerado um alimento funcional, pois apresenta prebióticos, amido resistente em sua composição, portanto considerada uma ótima fonte de nutrientes.

  4. Psychosocial concomitants of loneliness among students of Cape Verde and Portugal.

    Science.gov (United States)

    Neto, F; Barros, J

    2000-09-01

    This research is an examination of the relationship between loneliness and a number of psychosocial variables (e.g., affective state, cultural issues, gender, age) among adolescents and young adults from Cape Verde and Portugal. Two studies are presented. The participants in the first study were 285 adolescents from Cape Verde and 202 from Portugal, and in the second study there were 134 college students from Cape Verde and 112 from Portugal. The following instruments were administered to all the participants in both studies: The Revised UCLA Loneliness Scale (D. Russell, L. Peplau, & C. Cutrona, 1980), the Neuroticism Scale (J. Barros, 1999), the Optimism Scale (J. Barros, 1998), the Social Anxiety subscale (A. Fenigstein, M. Scheier, & A. Buss, 1975), and the Satisfaction With Life Scale (E. Diener, R. Emmons, R. Larsen, & S. Griffin, 1985). No ethnic or gender differences were found for loneliness between the two groups. For both groups, the most prominent predictors of loneliness were neuroticism and dissatisfaction with life. However, as expected, the adolescent group recorded higher scores for loneliness than did the college students.

  5. The continuous improvement system of nuclear power plant of Laguna Verde; El sistema de mejora continua de la central nucleoelectrica Laguna Verde

    Energy Technology Data Exchange (ETDEWEB)

    Rivera C, A. [Comision Federal de Electricidad, Central Nucleoelectrica Laguna Verde, Km. 42.5 Cardel-Nautla, Veracruz (Mexico)], e-mail: arr99999@cfe.gob.mx

    2009-10-15

    This paper describes the continuous improvement system of nuclear power plant of Laguna Verde and the achievements in implementing the same and additionally two study cases are presents. In February 2009 is noteworthy because the World Association of Nuclear Operators we identified as a learning organization, qualification which shows that the continuous improvement system has matured, and this system will expose as I get to learn to capitalize on our own experiences and external experiences diffused by the nuclear industry. In 2007 the management of nuclear power plants integrates its improvement systems and calls it continuous improvement system and is presented in the same extensive report that won the National Quality Award. This system is made up of 5 subsystems operating individually and are also related 1) human performance; 2) referential comparison or benchmarking; 3) self-assessment; 4) corrective action and 5) external operating experience. Five subsystems that plan, generate, capture, manage, communicate and protect the knowledge generated during the processes execution of nuclear power plant of Laguna Verde, as well as from external sources. The target set in 2007 was to increase the intellectual capital to always give response to meeting the security requirements, but creating a higher value to quality, customer, environment protection and society. In brief each of them, highlighting the objective, expectations management, implementation and some benefits. At the end they will describe two study cases selected to illustrate these cases as the organization learns by their continuous improvement system. (Author)

  6. USO Y VALORACIÓN DE LA TORTUGA VERDE (CHELONIA MYDAS EN LA COMUNIDAD DE AWASTARA

    Directory of Open Access Journals (Sweden)

    Maritza Cordón Suárez

    2012-01-01

    Full Text Available Este estudio se enfocó en los aspectos socioculturales, económicos y legales que intervienen en el aprovechamiento de la tortuga verde (Chelonia mydas en la comunidad indígena miskita de Awastara. Su metodología fue cualitativa y cuantitativa, en el paradigma de la investigación crítico social y el interaccionismo simbólico.Según los registros, el 95 % de la población de Awastara se dedica a la captura de tortugas durante todo el año. Esta práctica no sólo es para asegurar la alimentación comunal; sino también tiene un valor espiritual, es un legado de sus ancestros y a través de esto han preservado su cultura. La visión comunitaria actual no es regularizar la captura, sino integrar la participación comunitaria de forma equitativa.Los sitios de pesca son los Cayos Miskitos, y es la ruta por donde viaja la tortuga desde Norte a Sur. Esta ruta es permanente y de obligatoria estadía para su alimentación y descanso. La captura comunal es de unas 1200 unidades mensuales y el consumo es de 80 y 100 unidades mensuales, el remanente es para abastecer los mercados de Bilwi. Los costos varían de 10,700 a 6,000 córdobas por jornada, con un promedio de20-30 tortugas, lo cual proyecta una utilidad neta promedio de 17,500 córdobas, y por cada tortuga destazada 1,071 córdobas.La mayoría de las leyes y normativas emitidas por el MARENA y otras instancias, están dirigidas a la protección de la tortuga, sin considerar  la parte espiritual y cotidiana de la comunidad; no obstante, también existen medidas comunales de protección del recurso con la pesca artesanal.SummaryThis study focused on the sociocultural, economic and legal aspects that are involved in the use of the green turtle (Chelonia mydas in the indigenous miskitu community of Awastara. The methodology was qualitative and quantitative, based on the paradigm of the social critic investigation and the symbolic interactionism.According to the records, 95% of the population of

  7. Origin and Population Dynamics of a Novel HIV-1 Subtype G Clade Circulating in Cape Verde and Portugal.

    Science.gov (United States)

    de Pina-Araujo, Isabel Inês M; Delatorre, Edson; Guimarães, Monick L; Morgado, Mariza G; Bello, Gonzalo

    2015-01-01

    The human immunodeficiency virus type 1 (HIV-1) subtype G is the most prevalent and second most prevalent HIV-1 clade in Cape Verde and Portugal, respectively; but there is no information about the origin and spatiotemporal dispersal pattern of this HIV-1 clade circulating in those countries. To this end, we used Maximum Likelihood and Bayesian coalescent-based methods to analyze a collection of 578 HIV-1 subtype G pol sequences sampled throughout Portugal, Cape Verde and 11 other countries from West and Central Africa over a period of 22 years (1992 to 2013). Our analyses indicate that most subtype G sequences from Cape Verde (80%) and Portugal (95%) branched together in a distinct monophyletic cluster (here called G(CV-PT)). The G(CV-PT) clade probably emerged after a single migration of the virus out of Central Africa into Cape Verde between the late 1970s and the middle 1980s, followed by a rapid dissemination to Portugal a couple of years later. Reconstruction of the demographic history of the G(CV-PT) clade circulating in Cape Verde and Portugal indicates that this viral clade displayed an initial phase of exponential growth during the 1980s and 1990s, followed by a decline in growth rate since the early 2000s. Our data also indicate that during the exponential growth phase the G(CV-PT) clade recombined with a preexisting subtype B viral strain circulating in Portugal, originating the CRF14_BG clade that was later disseminated to Spain and Cape Verde. Historical and recent human population movements between Angola, Cape Verde and Portugal probably played a key role in the origin and dispersal of the G(CV-PT )and CRF14_BG clades.

  8. TECHOS VERDES COMO SOLUCIÓN AL PROBLEMA DE INUNDACIONES EN MEDIOS URBANOS

    Directory of Open Access Journals (Sweden)

    López, N.

    2015-12-01

    Full Text Available El presente trabajo de investigación se realizó empleando modelos matemáticos, con la finalidad de comparar la escorrentía producida en un urbanismo con condiciones actuales de techos de tejas criollas, contra otro donde se usan estructuras o dispositivos de almacenamiento y retención de agua en casas, patios, parcelas, calles y contra urbanismos en general. Se seleccionó una zona de estudio en el Estado Lara (Venezuela, en el municipio Palavecino, en las inmediaciones de la Quebrada Tabure, considerando los techos verdes desde el punto de vista de reductores de escorrentía. Se elaboró una aplicación llamada “TechosVerdes.py” en el programa de licencia libre Python, con aproximadamente 4600 líneas de código para calcular los hidrogramas de los techos, patios, calles y áreas verdes, basándose en un mosaico creado con imágenes tipo raster en el programa Quantum Gis. La investigación se basó en la comparación directa de trece escenarios hipotéticos, donde se utilizó techos verdes y adicionalmente, tanques de almacenamiento y brocales, con un escenario original en condiciones actuales, sin alteraciones. Se obtuvo como resultado en los hidrogramas calculados para los escenarios hipotéticos, que el caudal pico disminuye, achatándose el hidrograma. This research was carried out using mathematical models in order to compare the runoff from an urban planning with handmade tiles roofs in actual conditions, with one where structures or storage devices and water retention in houses, yards are used, parcels, streets and housing complexes in general. A study area in the state of Lara, Venezuela, in Palavecino municipality, near Quebrada Tabure, was selected and green roofs are considered from the point of view of reducing runoff. An application called "TechosVerdes.py" was made under the license free Python program with approximately 4600 code lines was developed to calculate hydrographs from roofs, patios, streets and green areas

  9. Phylogenetic relationships of cone snails endemic to Cabo Verde based on mitochondrial genomes.

    Science.gov (United States)

    Abalde, Samuel; Tenorio, Manuel J; Afonso, Carlos M L; Uribe, Juan E; Echeverry, Ana M; Zardoya, Rafael

    2017-11-25

    Due to their great species and ecological diversity as well as their capacity to produce hundreds of different toxins, cone snails are of interest to evolutionary biologists, pharmacologists and amateur naturalists alike. Taxonomic identification of cone snails still relies mostly on the shape, color, and banding patterns of the shell. However, these phenotypic traits are prone to homoplasy. Therefore, the consistent use of genetic data for species delimitation and phylogenetic inference in this apparently hyperdiverse group is largely wanting. Here, we reconstruct the phylogeny of the cones endemic to Cabo Verde archipelago, a well-known radiation of the group, using mitochondrial (mt) genomes. The reconstructed phylogeny grouped the analyzed species into two main clades, one including Kalloconus from West Africa sister to Trovaoconus from Cabo Verde and the other with a paraphyletic Lautoconus due to the sister group relationship of Africonus from Cabo Verde and Lautoconus ventricosus from Mediterranean Sea and neighboring Atlantic Ocean to the exclusion of Lautoconus endemic to Senegal (plus Lautoconus guanche from Mauritania, Morocco, and Canary Islands). Within Trovaoconus, up to three main lineages could be distinguished. The clade of Africonus included four main lineages (named I to IV), each further subdivided into two monophyletic groups. The reconstructed phylogeny allowed inferring the evolution of the radula in the studied lineages as well as biogeographic patterns. The number of cone species endemic to Cabo Verde was revised under the light of sequence divergence data and the inferred phylogenetic relationships. The sequence divergence between continental members of the genus Kalloconus and island endemics ascribed to the genus Trovaoconus is low, prompting for synonymization of the latter. The genus Lautoconus is paraphyletic. Lautoconus ventricosus is the closest living sister group of genus Africonus. Diversification of Africonus was in allopatry

  10. Los imperativos del exilio (A propósito del centenario de María Zambrano

    Directory of Open Access Journals (Sweden)

    Sánchez Cuervo, Antolín

    2004-12-01

    Full Text Available Few vital and intellectual trajectories have been so bound to the experience of the exile like that of María Zambrano (1904-2004. Far from being drained in a simple biographical circumstance, it was this experience the constant nourishment of an entire reflection from and on the margin, in answer to the crisis of the western subjectivity. The memory, understood as an interpolating rescue of their lost faces, veiled under the overpowering violence of the European history, and against the grain always of all objective or discursive understanding of the past, plays a part singly inside this reflection. It is for it that centennials as that of María Zambrano invites, not already to remember one of the most important philosophical works in the Spanish exile of 1939, but also to revise the same sense of the anniversaries. To discover, under the objectivity of the same ones, something more than history.

    Pocas trayectorias vitales e intelectuales han estado tan ligadas a la experiencia del exilio como la de María Zambrano (1904-2004. Lejos de agotarse en una mera circunstancia biográfica, fue esta experiencia el abono constante de toda una reflexión desde y sobre el margen, en respuesta a la crisis de la subjetividad occidental. La memoria, entendida como un rescate interpelador de sus rostros perdidos, velados bajo la violencia avasalladora de la historia europea, y a contrapelo siempre de toda comprensión lineal, objetiva o discursiva del pasado, desempeña un papel singularmente relevante dentro de esta reflexión. Es por ello que centenarios como el de María Zambrano invitan, no ya a rememorar una de las obras filosóficas más importantes del exilio español del 39, sino también a revisar el sentido de las efemérides. A descubrir, bajo la objetividad de las mismas, algo más que historia.

  11. Assessing a sustainable sugarcane production system in Tucumán, Argentina: Part 1: Dynamics of sugarcane harvest residue (trash decomposition Evaluación de un sistema sustentable de producción de caña de azúcar en Tucumán, R. Argentina. Parte I: Dinámica de la descomposición del residuo de la cosecha en verde de la caña de azúcar

    Directory of Open Access Journals (Sweden)

    Patricia A. Digonzelli

    2011-06-01

    estudio donde se compararon dos sistemas de producción de caña de azúcar: a manteniendo la cobertura de residuos de cosecha (RAC sobre el suelo y b sin cobertura de residuos de cosecha (residuo quemado. Se establecieron macroparcelas en un lote comercial implantado con el cultivar LCP 85-384, en la localidad de Albarracín, Tucumán, República Argentina. El diseño experimental fue de parcelas divididas con tres repeticiones; cada parcela estuvo formada por cinco surcos de 30 m. Las evaluaciones se hicieron en dos ciclos agrícolas: 2006/2007 y 2007/2008 (segunda y tercera soca. A partir de la cosecha, se determinó periódicamente la cantidad de RAC (materia seca/ha y la relación C/N del RAC. En el comienzo y fin de cada ciclo se evaluó el contenido de P y K del residuo. La cantidad de residuo después de la cosecha fue de 12 y 16 t de materia seca/ha para cada ciclo agrícola, respectivamente. Esta cantidad decreció significativamente desde el comienzo hacia el fin de cada ciclo. La relación C/N del RAC fue superior a 100 en ambos ciclos (117 y 101, respectivamente, pero se redujo significativamente hacia el fin de cada ciclo. La disminución de la cantidad de RAC y de la relación C/N estuvo correlacionada con los días transcurridos desde la cosecha y con la temperatura (suma térmica. La concentración inicial de C del RAC fue similar en ambos ciclos (aproximadamente 45%, mientras que la concentración inicial de N fue más variable entre los ciclos considerados (0,4% y 0,6%, respectivamente. La descomposición del RAC aportó al agroecosistema entre 3800 y 5700 kg de C/ha, 7 y 50 kg de N/ha y 45 y 40 kg de K/ha, en cada ciclo agrícola estudiado.

  12. Incidencia del deterioro progresivo del arbolado urbano en el Valle de Aburrá, Colombia

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    Hector Ivan Restrepo Orozco

    2015-07-01

    Full Text Available El arbolado urbano de los municipios del Valle de Aburrá, Colombia, está evidenciando deterioro y muerte por estrés hídrico y térmico, contaminación atmosférica, urbanización y ataques de plagas y enfermedades. Se realizó un muestreo de 11 710 individuos de 25 especies de árboles y palmas en el área metropolitana del Valle de Aburrá, con el propósito de registrar síntomas de deterioro progresivo (DP como marchitez de ramas y secamiento descendente. Se estimó un modelo logit multifactorial que relaciona la incidencia del DP con características dasométricas de los individuos, el sitio de siembra y el número de afectaciones. Se encontraron 720 individuos con DP (incidencia de 6.1%. Los modelos logit tuvieron un ajuste satisfactorio a los datos y evidenciaron que existe una relación estadísticamente significativa entre la incidencia del deterioro de árboles y el diámetro del árbol, su ubicación (municipio, especie, sitio de siembra (zona verde, piso duro, alcorque y presencia de otras afectaciones.

  13. Verde plant bug, Creontiades signatus (Hemiptera: Miridae) effects of insect density and bloom period of infestation on cotton damage and yield

    Science.gov (United States)

    The verde plant bug, Creontiades signatus Distant (Hemiptera: Miridae), has emerged as a threat to cotton in South Texas, causing boll damage similar to boll-feeding stink bugs (Hemiptera: Pentatomidae). Verde plant bugs were released into caged cotton for a one-week period to characterize the effec...

  14. Do riparian plant community characteristics differ between Tamarix (L.) invaded and non-invaded sites on the upper Verde River, Arizona?

    Science.gov (United States)

    Tyler D. Johnson; Thomas E. Kolb; Alvin L. Medina

    2009-01-01

    Invasion by Tamarix (L.) can severely alter riparian areas of the western U.S., which are globally rare ecosystems. The upper Verde River, Arizona, is a relatively free-flowing river and has abundant native riparian vegetation. Tamarix is present on the upper Verde but is a minor component of the vegetation (8% of stems). This...

  15. Metalurgía y comercio del cobre en la Europa prehistórica

    Directory of Open Access Journals (Sweden)

    Edward SANGMEISTER

    2009-10-01

    Full Text Available Al ocuparnos de la propagación de la técnica del cobre quizá sea oportuno empezar por plantearnos la cuestión de cómo se le pudo ocurrir de repente a un hombre de la Edad de Piedra el coger el cobre como primer metal para elaborarlo. Aunque carecemos de todo testimonio seguro es probable que el hombre, en su búsqueda de piedras utilizables —entre las cuales también había materiales que le interesaban por sus hermosos colores—, haya tropezado con el cobre, que aparece en muchos sitios y se puede recoger en superficie. Precisamente su semejanza con dichas piedras semipreciosas verdes es muy grande, a causa de la pátina verde que se crea en el cobre nativo.

  16. Popular conceptions of schizophrenia in Cape Verde, Africa Concepções populares da esquizofrenia em Cabo Verde, África

    Directory of Open Access Journals (Sweden)

    Mário Dinis Mateus

    2005-06-01

    Full Text Available INTRODUCTION: It has been well documented that schizophrenia presents a better clinical course in developing countries. Although there are many epidemiological studies showing this association, little research has been conducted to investigate the local representation systems for schizophrenia in these countries. OBJECTIVES: This study focuses on cultural factors of schizophrenia, namely the local representation systems for the disease, as well as what is locally understood as deviant behavior and its acceptability, and mechanisms of social-cultural insertion or exclusion of patients with schizophrenia in Cape Verde, Africa. METHODS: Randomized open interviews were carried out with the relatives of patients under treatment at the mental health out patient service of the Batista de Sousa Hospital (São Vicente Island between the years 1994 and 1995. Interviews dealt with patients' life histories and disease related to problems, strategies employed by the family to cope with such problems, and comments on the social and family burden. RESULTS: 20 interviews with close relatives of 10 patients were analyzed. The study focused on three main categories explaining schizophrenia: "tired head" (cabeça cansada, "nervous" (nervoso, and supernatural categories (like "sorcery" or "witchcraft". The interviewees expressed their opinions, either explicitly or not, on whether their relatives truly had a disease. CONCLUSION: Characteristics of local categories for schizophrenia found in Cape Verde can be regarded as a less stigmatized way of dealing with the disease. It is reasonable to suppose that the understanding of such cultural factors could lead to better outcomes in the treatment for schizophrenia in this country, and also in others, where similar conditions can be identified.INTRODUÇÃO: Tem sido bem documentado que a esquizofrenia apresenta um melhor curso clínico em países em desenvolvimento. Ainda que haja muitos estudos epidemiol

  17. Efecto del uso predominante de fungicidas sistémicos para el control de Sigatoka negra (Mycosphaerella Fijiensis Morelet en el área foliar del banano

    Directory of Open Access Journals (Sweden)

    MSc. José Quevedo Guerrero

    2018-04-01

    Full Text Available Sigatoka negra (Mycosphaerellafijiensis Morelet,enfermedad que afecta la capacidad fotosintética de la planta de banano en zonas donde la humedad relativa es alta, y favorece sudesarrollo, hacendel sur del Guayas y del norte de la provincia de El Oro, sus hábitats favoritos, han llevado a los productores al uso indiscriminado de los fungicidas existentes en el mercado. Actualmente existen estrategias de control con el uso de fungicidas protectantes y sistémicos que contribuyen a disminuir los daños ocasionados por este hongo. Este trabajo plantea analizar la eficiencia de los fungicidas más usados comúnmente por los productores en cuatro fincas bananeras para estimar su eficiencia mediante el preaviso biológico en plantas prontas a la floración, utilizando un diseño experimental de bloques al azar con pruebas de Tukey al 0.05 de confiabilidad. Los resultados indicaron que las fincas San Andrés 1-2 y San Andrés 3 ubicadas en la zona Balao, y que usaron en sus programas de control de Sigatoka negra fungicidas protectantes y sistémicos en rotación y mezcla, además de aplicaciones de abonos foliares, presentaron valores estadísticamente diferentes a las otras fincas que aplicaron una mayor cantidad de ciclos con fungicidas sistémicos. Las fincas Elizabeth 2 y La Italia presentaron estados evolutivos más altos en las hojas más jóvenes y una emisión foliar más lenta. Se puede concluir que las fincas San Andrés 1-2 y San Andrés 3 mostraron diferencias significativas en el número de hojas sanas a la cosecha, estados evolutivos y emisión foliar, con un mejor estado fitosanitario.

  18. Cabo Verde, «Pousada» nos Caminhos do Atlântico. Interinfluências culturais num arquipélago miscigenado / Cape Verde, the «Pousada» of the Atlantico routes - cultural interinfluences in an interbred archipelago

    Directory of Open Access Journals (Sweden)

    José Silva Évora

    2014-12-01

    Full Text Available Descoberto entre 1460 e 1462, o Arquipélago de Cabo Verde, situado no Oceano Atlântico, constituiu ao longo de vários séculos, escala obrigatória dos navios que faziam as ligações atlânticas entre os portos das Américas, da Europa e da África Graças a sua situação privilegiada, o espaço cabo-verdiano não foi um mero ponto de reabastecimento, mas também um importante ponto de cruzamento de culturas e de raças. Pretende-se, neste texto, abordar o papel que Cabo Verde teve no Atlântico incidindo, particularmente, na dimensão cultural resultante do contacto entre povos e culturas provenientes de diferentes paragens que se fixaram no arquipélago ou que por aqui passaram. Procurar-se-á evidenciar não só a importância que Cabo Verde teve enquanto ponto de passagem obrigatória mas, sobretudo, as contribuições que mais marcadamente se denunciaram, isto é, os apports culturais que mais se acentuaram em Cabo Verde, como processos recebidos dos estrangeiros que por estas ilhas se cruzaram.The Archipelago of Cape Verde, discovered between 1460 and 1462, and situated in the Atlantic Ocean, had been considered for centuries one of the mandatory harbours of the ships that sailed across the Atlantic to the ports of America, Europe and Africa. Because of its strategic location, Cape Verdean anchorage was considered not only the supplying point, but also an important melting pot of races and cultures. It is intended to highlight the role of Cape Verde in the Atlantic focusing particularly on the cultural aspect, as a result of the influence of cultures and origins of people who had settled in or had passed by the archipelago. It is also aimed to underline the importance of Cape Verde as a mandatory gateway but, above all, to underline the remarkable contributions, such as the cultural “apports” by which Cape Verde were gripped, like processes brought by the foreigners who crossed these islands.

  19. Negative sequence relay applied to generator 1 of the Laguna Verde nuclear power plant; Aplicacion de un relevador de secuencia negativa en el generador 1 de la central de Laguna Verde

    Energy Technology Data Exchange (ETDEWEB)

    Diaz de la Serna P, Enrique [Instituto de Investigaciones Electricas, Cuernavaca (Mexico)

    1988-12-31

    The rotor of a synchronous generator can be dangerously heated in a short time by stator current unbalance, therefore it must be protected with a specific relay. This article discusses the protection and the adjustments selected for Unit 1 of the Comision Federal de Electricidad Laguna Verde Nuclear Nuclear Power Station. [Espanol] El rotor de un generador sincrono puede calentarse peligrosamente en un tiempo corto debido a desbalance de corrientes en el estator, por lo que debe protegerse con un relevador especifico. En este articulo se describen la proteccion y los ajustes seleccionados para la unidad 1, de la central nucleoelectrica Laguna Verde de la Comision Federal de Electricidad.

  20. Groundwater resources of Ribeira Paúl basin, island of Santo Antão, Cape Verde, West Africa

    Science.gov (United States)

    Heilweil, Victor M.; Gingerich, Stephen B.; Verstraeten, Ingrid M.

    2010-01-01

    Groundwater resources in Cape Verde provide water for agriculture, industry, and human consumption. These resources are limited and susceptible to contamination. Additional groundwater resources are needed for continued agricultural development, particularly during times of drought, but increased use and (or) climatic change may have adverse effects on the quantity and quality of freshwater available. In volcanic island aquifers such as those of Cape Verde, a lens of fresh groundwater typically ?floats? upon a layer of brackish water at the freshwater/saltwater boundary, and increased pumping may cause salt water intrusion or other contamination. A recent U.S. Geological Survey study assessed baseline groundwater conditions in watersheds on three islands of Cape Verde to provide the scientific basis for sustainably developing water resources and minimizing future groundwater depletion and contamination.

  1. Groundwater resources of Ribeira Fajã basin, island of São Nicolau, Cape Verde, West Africa

    Science.gov (United States)

    Heilweil, Victor M.; Gingerich, Stephen B.; Plummer, Niel; Verstraeten, Ingrid M.

    2010-01-01

    Groundwater resources in Cape Verde provide water for agriculture, industry, and human consumption. These resources are limited and susceptible to contamination. Additional groundwater resources are needed for continued agricultural development, particularly during times of drought, but increased use and (or) climatic change may have adverse effects on the quantity and quality of freshwater available. In volcanic island aquifers such as those of Cape Verde, a lens of fresh groundwater typically ?floats? upon a layer of brackish water at the freshwater/saltwater boundary, and increased pumping may cause salt water intrusion or other contamination. A recent U.S. Geological Survey study assessed baseline groundwater conditions in watersheds on three islands of Cape Verde to provide the scientific basis for sustainably developing water resources and minimizing future groundwater depletion and contamination.

  2. Electrical Systems at Laguna Verde Nuclear Power Plant (LVNPP) after the Fukushima accident

    International Nuclear Information System (INIS)

    Lopez Jimenez, Jose Francisco

    2015-01-01

    During the accident occurred in Fukushima Daiichi Nuclear Power Station in Japan, the onsite and offsite electrical systems were affected and lost for a long time with irreversible consequences, therefore, the Mexican Regulatory Body known as the National Commission for Nuclear Safety and Safeguards (CNSNS: for its acronym in Spanish) has taken several actions to review the current capacity of the electrical systems installed at Laguna Verde NPP to cope with an event beyond of the design basis. The first action was to require to Laguna Verde NPP the compliance with Information Notice 2011-05 'Tohoku-Taiheiyou-Oki earthquake effects on Japanese Nuclear Power Plants' and with 10 CFR 50.54 'Conditions of licenses' section 'hh', both documents were issued by the United States Nuclear Regulatory Commission (USNRC). Additionally, CNSNS has taken into account the response actions emitted by other countries after the Fukushima accident. This involved the review of documents generated by Germany, Canada, United Arab Emirates, Finland, France, the United Kingdom and the Western European Nuclear Regulator's Association (WENRA). CNSNS made special inspections to verify the current capacity of the electrical systems of AC and DC. As a result of these inspections, CNSNS issued requirements that must be addressed by Laguna Verde NPP to demonstrate that it has the capacity to cope with events beyond the design basis. Parallel to the above, Mexico has participated in the Ibero-american Forum to address matters related to the 'Resistance Tests', the evaluations of the Forum have reached similar conclusions to those required by European Nuclear Safety Regulators Group (ENSREG), under the format proposed by WENRA. The actions carried out here are closely linked to the requirements established by the USNRC. It is also important to mention that: 1) the Extended Power Up-rate project was implemented in both Units of the Laguna Verde NPP before

  3. Propiedades físico-mecánicas del fruto y del sistema fruto-pedúnculo del café variedad Colombia.

    Directory of Open Access Journals (Sweden)

    Alvarez Tobón Elizabeth

    1999-12-01

    Full Text Available En el Centro Nacional de Investigación de café CENICAFE, se estudió para café cereza variedad Colombia de frutos amarillos y rojos, de 2,3 y 4 años en estado de maduración verde, pintón y maduro, las propiedades físicas y mecánicas del sistema fruto-pedúnculo: dimensiones de los frutos, peso, momento de inercia con respecto a los tres ejes(x, y, z, longitud, diámetro y rigidez del pedúnculo, fuerza de tracción y momentos flectores y torsores necesarios para el desprendimiento de los frutos.

  4. IDEOLOGIA VERDE E O COMPORTAMENTO DO CONSUMIDOR TECNOLÓGICO: PREFERÊNCIA DE USO E JUSTIFICAÇÃO

    Directory of Open Access Journals (Sweden)

    Marina Lemos Barboza

    2014-04-01

    Full Text Available O presente artigo objetiva analisar o comportamento de consumo tecnológico, dado a justificação do valor verde integrado em dispositivos eletrônicos, do tipo smartphones e tablets. Com isto, foi realizado um estudo baseado na literatura de comportamento do consumidor, produtos verdes, ideologia verde, convergência tecnológica e preferência de uso por produtos tecnológicos, utilizando de pesquisa netnográfica como opção metodológica, a qual consiste da extração de informações de blogs/fóruns de discussões, realizando uma análise de conteúdo para as discussões coletadas, de forma a codificar e categorizar os grupos participantes deste argumento. Para complementar questionamentos que ficaram em abertos após a netnografia, foram feitas entrevistas com nove consumidores específicos por suas características de consumo, de forma a melhor compreender como fatores de marketing influenciam nestas decisões. Neste contexto, este estudo teve como resultado cinco categorias de consumidores identificados, com subcategorias implícitas. Este estudo observa e interpreta o ponto de vista do consumidor tecnológico, avaliando se a difusão dos produtos verdes (consumo sustentável ou com valores/atributos ecológicos, inseriu-se no contexto da sociedade atual, e se a discussão desta realidade mercadológica, apresenta consigo a inovação da consciência ecológica (verde, além da percepção de inovação tecnológica com a inserção do verde.

  5. Fibra da casca do coco verde como substrato agrícola

    Directory of Open Access Journals (Sweden)

    Carrijo Osmar Alves

    2002-01-01

    Full Text Available A produção comercial de mudas e o cultivo sem solo de hortaliças estão se tornando práticas comuns entre os olericultores. Vários materiais orgânicos como as turfas, resíduos de madeira, casca de pinus e de arroz parcialmente carbonizada ou não, ou materiais inorgânicos como areia, rochas vulcânicas, perlita, lã de rocha e a espuma fenólica já são utilizados como substratos, isoladamente ou em composição. A casca de coco verde que em muitas regiões causa transtorno ao serviço de limpeza pública pelo volume e pela dificuldade de decomposição produz uma fibra que pode ser utilizada como substrato. Para a produção da fibra, a casca de coco verde é picada, desfibrada, triturada, lavada e secada. Para o uso como substrato na produção de mudas, a fibra deve passar por um processo de compostagem. Este processo não é necessário para o uso como substrato em cultivo sem solo, mas no entanto, o substrato necessitará ser enriquecido com nutrientes em pré-plantio ou em fertirrigação. O uso do substrato da fibra de coco verde na produção de tomate em casa de vegetação, alcançou, em termos absolutos, 13,2 kg m-2 de frutos comerciais (média de 3 anos cerca de 7,3% mais que o segundo melhor substrato, o pó de serra com 12,3 kg m-2.

  6. MARKETING VERDE COMO PROPENSA VANTAGEM COMPETITIVA SUSTENTÁVEL DE UMA ORGANIZAÇÃO

    Directory of Open Access Journals (Sweden)

    Cleber Vasconcelos Moreira

    2016-01-01

    Full Text Available O crescimento da preocupação com as consequências ambientais diante do consumo desenfreado tem levantado à questão da necessidade de um consumo consciente. Diante disso, um novo segmento de mercado tem sido encontrado, sendo denominados consumidores ecologicamente conscientes ou consumidores Verdes. Neste novo cenário valoriza-se a flexibilidade, a velocidade nos processos de mudanças e inovação, as competências em utilizar recursos escassos, além da sensibilidade de perceber novas tendências de mercado à frente dos concorrentes e a capacidade de elaborar e fomentar ofertas em função das antecipações dos desejos e necessidades dos clientes. A dificuldade de previsão tornou-se ponto chave. É neste momento que se observa a relevância na valorização das preocupações de caráter ambiental como recursos na obtenção de vantagem competitiva. Essas duas nuancem Vantagem Competitiva e Marketing Verde levaram a este estudo. Deste modo, foi realizado um estudo multicaso com duas empresas do setor industrial localizadas no Espirito Santo. Os resultados comprovaram que as empresas, mesmo a que investe em meio ambiente, não o faz de forma estratégica. Ainda não há uma ampla utilização do tema como fonte recurso para ser um diferencial frente ao concorrente. Ou seja, as empresas analisadas ainda não entendem o Marketing Verde como vantagem competitiva.

  7. Internal event analysis for Laguna Verde Unit 1 Nuclear Power Plant. Accident sequence quantification and results

    International Nuclear Information System (INIS)

    Huerta B, A.; Aguilar T, O.; Nunez C, A.; Lopez M, R.

    1994-01-01

    The Level 1 results of Laguna Verde Nuclear Power Plant PRA are presented in the I nternal Event Analysis for Laguna Verde Unit 1 Nuclear Power Plant, CNSNS-TR 004, in five volumes. The reports are organized as follows: CNSNS-TR 004 Volume 1: Introduction and Methodology. CNSNS-TR4 Volume 2: Initiating Event and Accident Sequences. CNSNS-TR 004 Volume 3: System Analysis. CNSNS-TR 004 Volume 4: Accident Sequence Quantification and Results. CNSNS-TR 005 Volume 5: Appendices A, B and C. This volume presents the development of the dependent failure analysis, the treatment of the support system dependencies, the identification of the shared-components dependencies, and the treatment of the common cause failure. It is also presented the identification of the main human actions considered along with the possible recovery actions included. The development of the data base and the assumptions and limitations in the data base are also described in this volume. The accident sequences quantification process and the resolution of the core vulnerable sequences are presented. In this volume, the source and treatment of uncertainties associated with failure rates, component unavailabilities, initiating event frequencies, and human error probabilities are also presented. Finally, the main results and conclusions for the Internal Event Analysis for Laguna Verde Nuclear Power Plant are presented. The total core damage frequency calculated is 9.03x 10-5 per year for internal events. The most dominant accident sequences found are the transients involving the loss of offsite power, the station blackout accidents, and the anticipated transients without SCRAM (ATWS). (Author)

  8. Legitimacy and Innovation in Mining: the case of the Oro Verde Program

    Directory of Open Access Journals (Sweden)

    Mariana Sarmiento

    2013-11-01

    Full Text Available The paper describes how the Oro Verde Program emerged, and how it has gained recognition as an innovative program that has successfully promoted improved social and environmental practices for small scale miners. The paper describes the local and regional context where the miners from Oro Verde are from, and attempts to explain how it waspossible for two afro-colombian communities, two NGOs and a government agency to find alternative arrangements to overcome the challenges that result from the complexities of the Choco region in Colombia. The paper argues that one factor of success is the interaction among participants to create a Non-State Market Driven Governance System. In the case of the Oro Verde Program, the norms created by the international system surrounding sustainable development were necessary for allowing the NGOs to bring financial resources into the project as well as opening the doors to isolated communities in Choco to an international market that valued sustainably produced products. Similarly, the national policies surrounding Green Markets and the existence of a government research institution, made the certification process possible and legitimate. Finally, having a law that recognized land rights to afro-Colombian communities and the community councils as local authorities, as well as customary laws about natural resource use and access within these territories was key for the viability of the project. All of these organizations, working as a nested governance system, that respected and embraced different but interdependent norms and interests, were key for the consolidation of a NSMD that has resonated throughout the world and that has become an element of some afro-Colombians’ struggle to protect their rights for self-determination.

  9. Participation of the ININ in the external radiological emergency plan of the Laguna Verde power plant

    International Nuclear Information System (INIS)

    Martinez S, R.; Cervini L, A.

    1991-01-01

    The planning of performances in radiological emergencies, with the object of reducing the consequences as much as possible on the population to accidental liberations of radioactive material coming from Nuclear power plant, it has been of main interest in the nuclear community in the world. In Mexico it has not been the exception, since with the setting in march of the Laguna Verde nuclear power plant exists an executive program of planning for emergencies that it outlines the activities to follow trending to mitigate the consequences that are derived of this emergency. As integral part of this program this the External Plan of Radiological Emergency (PERE) that covers the emergencies that could leave the frontiers of the Laguna Verde power plant. In the PERE it settles down the planning, address and control of the preparation activities, response and recovery in emergencies, as well as the organization and coordination of the institutions that participate. The National Institute of Nuclear Research (ININ), like integral part of these institutions in the PERE, has an infrastructure that it allows to participate in the plan in a direct way in the activities of 'Control of the radiological exhibition the response personnel and control of water and foods' and of support way and consultant ship in the activities of 'Monitoring, Classification and decontamination of having evaluated' and 'Specialized medical radiological attention'. At the moment the ININ has a radiological mobile unit and this conditioning a second mobile unit to carry out part of the activities before mentioned; also accounts with 48 properly qualified people that directly intervene in the plan. In order to guarantee an adequate response in the PERE an organization it has been structured like that of the annex as for the personnel, transport, team, procedures and communication system, with the objective always of guaranteeing the security and the population's health in emergency situations in the

  10. Palos Verdes Shelf oceanographic study; data report for observations December 2007–April 2008

    Science.gov (United States)

    Rosenberger, Kurt J.; Noble, Marlene A.; Sherwood, Christopher R.; Martini, Marinna M.; Ferreira, Joanne T.; Montgomery, Ellyn T.

    2011-01-01

    Beginning in 1997, the Environmental Protection Agency (EPA) defined a contaminated section of the Palos Verdes Shelf region in southern California as a Superfund Site, initiating a continuing investigation of this area. The investigation involved the EPA, the U.S. Geological Survey (USGS), Science Applications International Corporation (SAIC), Los Angeles County Sanitation Districts (LACSD) data, and other allied agencies. In mid-2007, the Palos Verdes Shelf project team identified the need for additional data on the sediment properties and oceanographic conditions at the Palos Verdes Superfund Site and deployed seven bottom platforms, three subsurface moorings, and three surface moorings on the shelf. This additional data was needed to support ongoing modeling and feasibility studies and to improve our ability to model the fate of the effluent-affected deposit over time. It provided more detail on the spatial variability and magnitude of resuspension of the deposit during multiple storms that are expected to transit the region during a winter season. The operation began in early December 2007 and ended in early April 2008. The goal was to measure the sediment response (threshold of resuspension, suspended-sediment concentrations, and suspended-sediment transport rates) to bed stresses associated with waves and currents. Other objectives included determining the structure of the bottom boundary layer (BBL) relating nearbed currents with those measured at 10 m above bottom (mab) and comparing those with the long-term data from the LACSD Acoustic Doppler Current Profiler (ADCP) deployments for nearbed current speed and direction. Low-profile tripods with high-frequency ADCPs co-located with two of the large tripods were selected for this goal. This report describes the data obtained during the field program, the instruments and data-processing procedures used, and the archive that contains the data sets that have passed our quality-assurance procedures.

  11. Nuevas aportaciones para la historia de la arqueología en la provincia de Málaga: documentos del Museo Nacional de Ciencias Naturales (I: Las antigüedades de Cártama)

    OpenAIRE

    Berlanga-Palomo, Maria Jose

    2002-01-01

    En este artículo damos a conocer los documentos conservados en el Archivo del Museo Nacional de Ciencias Naturales, pertenecientes al antiguo Gabinete del Historia Natural, en los que se documenta la visita en 1779 del Capitán del Regimiento de Infantería de voluntarios de Cataluña, Gerónimo Verde, a la villa de Cártama (Málaga), donde se da noticia de las antiguedades allí descubiertas a mediados de ese mismo siglo.

  12. PERCEPÇÕES SOBRE CIDADANIA E MEIO AMBIENTE A PARTIR DAS AÇÕES COMUNICACIONAIS DA ONG TERRA VERDE

    Directory of Open Access Journals (Sweden)

    Joel Felipe Guindani

    2017-08-01

    , an interview was conducted with the NGO coordinator, who revealed to us some of the communication activities developed. This article also looks at some of the digital content aired by the NGO on their online social networks. As a result, the aspects of communication in face-to-face formative actions with the riverside communities are evidenced; in dialogues with young people from educational institutions, as well as in the delivery of content on online social networks.  KEYWORDS: Citizenship; Communication; Sustainability; NGOs; Terra Verde.     RESUMEN Este artículo presenta preguntas sobre la relación ciudadanía y medio ambiente a partir de algunas acciones comunicacionales del proyecto "Tape I Iande-caminho das águass", de la Organización No Gubernamental (ONG, "Terra Verde", realizado bajo el recorrido de las aguas del Río Uruguay, en la frontera Brasil-Argentina. En teoría, este artículo presenta una discusión inicial acerca de algunos sentidos que constituyen la noción de ciudadanía (SANTOS, 2006; PORTILHO, 2005; DAGNINO, 1994; Enfatiza la posible relación entre ciudadanía y sostenibilidad ambiental (CANTO, 2013 y, al final, establece conexiones entre comunicación y ciudadanía (KUNSH, 2007. Como metodología, se realizó una entrevista con el coordinador de la referida ONG, que nos reveló sobre algunas de las actividades comunicacionales desarrolladas. Este artículo también analiza algunos contenidos digitales transmitidos por la ONG en sus redes sociales online. Como resultado, se evidencian los aspectos de la comunicación en las acciones formativas presenciales con las comunidades ribereñas; En los diálogos con jóvenes de instituciones educativas, así como en la difusión de contenidos en las redes sociales online.  PALABRAS CLAVE: Ciudadanía; Comunicación; Sostenibilidad; ONG; Tierra Verde.

  13. Efecto del uso de quitosano en el mejoramiento del cultivo del arroz (Oryza sativa L.

    Directory of Open Access Journals (Sweden)

    José Alejandro Molina Zerpa

    2017-09-01

    Full Text Available En la actualidad existen alternativas tecnológicas para el aprovechamiento de los desechos de crustáceos y su conversión en productos de utilidad como lo son la quitina y su derivado el quitosano.  En esta investigación, se utilizó gel de quitosano para aplicarlo a la variedad de arroz SD20 para mejorar su cultivo. El análisis mediante IR del quitosano utilizado mostró similitud con los espectros para cada una de las muestras, confirmando con estos resultados que la utilización de diferentes quitinas obtenidas por la desmineralización con HCl y H3PO4 no afectó la identidad del producto, pues se mantienen las bandas de los grupos funcionales más importantes, demostrándose así que las quitinas se transformaron en una nueva materia prima como el quitosano. Las plantas tratadas con quitosano presentaron alturas mayores, con incrementos de altura hasta de 16,57% en comparación al testigo. Además, produjo un incremento de la raíz de 52% para los 12 días de siembra en comparación con el testigo. Se observó en las plantas de arroz un color verde más intenso que en lote testigo, estos resultados se deben a la capacidad estimulante del quitosano, ya que actúa mejorando el enraizamiento y la producción de área foliar de la planta. Se encontró una diferencia de 1025 kg/ha, y un incremento en la cosecha de 16,21% con respecto al tratamiento sin quitosano. Se concluye que el cultivo de arroz, variedad SD20A, tuvo un desarrollo vegetativo mejor con el tratamiento con quitosano.

  14. O chá verde e suas ações como quimioprotetor

    OpenAIRE

    Wanderlei Schmitz; Alexandre Yukio Saito; Dirceu Estevão; Halha Ostrensky Saridakis

    2005-01-01

    O chá preto é responsável por 75% do chá consumido no mundo e o chá verde, por apenas 22%. O chá que era consumido como medicamento, passou a ser do gosto popular devido as suas característica organolépticas. Seus componentes flavonóides e catequinas apresentam uma série de atividades biológicas, antioxidante, quimioprotetora, antiinflamatória e anticarcinogênica. Vários estudos vêm sendo desenvolvidos por pesquisadores em varias regiões do mundo para comprovar estas atividades terapêuticas, ...

  15. Quality assurance evolution at Laguna Verde Nuclear Power Plant Unit 1 and 2, regulatory aspects

    International Nuclear Information System (INIS)

    Leon Martinez, Cenobia

    1996-01-01

    Quality Assurance (QA) in Mexico started with the construction of the Laguna Verde Nuclear Power Plant. The Nuclear Regulatory Body, based in the adopted regulation, required the use of Quality Assurance in the design, construction and operation of the Plant. This paper describes the evolution of QA from its beginnings, through its developing phase up to this time, and shows the role of the Regulatory Body, which has participated actively in the implantation of QA in a properly manner, enforcing the utility in avoiding deviations and non-compliancies with the established regulation. (author)

  16. Homogalactanas sulfatadas da macroalga verde Codium isthmocladum: aspectos estruturais e farmacológicos

    OpenAIRE

    Farias, Eduardo Henrique Cunha de [UNIFESP

    2011-01-01

    Galactanas e o termo utilizado para designar polissacarideos que contem galactose. Homogalactanas sulfatadas, SG 1 e SG 2, foram extraidas de macroalga marinha verde Codium isthmocladum apos proteolise, fracionamento por acetona a frio e cromatografia de troca-ionica. A massa molecular foi determinada por cromatografia de gel-filtracao em HPLC e deteccao por indice de refracao e UV, sendo que SG 1 apresenta massa molecular media ao redor de 12 kDa e SG 2 de 15,0 kDa. Analises estruturais empr...

  17. Current situation of spent fuel management in the Laguna Verde Nuclear Power Plant, Veracruz, Mexico

    International Nuclear Information System (INIS)

    Moreno, C.V.

    1994-01-01

    The Comision Federal de Electricidad (CFE), owner and operator of the Laguna Verde nuclear power plant (2 x 654 MWe BWR), has twice decided to increase the storage capacity of the spent fuel pools of the reactors. The Comision Nacional de Seguridad Nuclear y Salvaguardias (CNSNS), the national nuclear regulatory authority, approved the increase by a factor of 2.66 in the storage capacity proposal by CFE in 1989. Each reactor spent fuel pool can now hold 614 t HM. The reracking was done at a cost of about US $13 per kg U, which will add only 0.042 mills per kWh to the fuel cycle cost. (author)

  18. Remote handling and robotic inspections of Palo Verde reactor vessel internals

    International Nuclear Information System (INIS)

    Ryder, W.

    1998-01-01

    Remote visual examinations and handling evolutions in high radiation field environments have required the use of radiation tolerant video systems. These systems involve significant expense and potentially require large envelope deployment structures. Recent events at Palo Verde including Upper Guide Structure damage and Reactor Vessel In-Service Inspections have provided opportunities for research, design and utilization of alternative approaches. Most significant of these, utilization of CCD modules with high magnification capabilities, have produced higher quality viewing, reduced maintenance expenditures, and rapid deployment intervals. (orig.) [de

  19. Participation of the research institutes in the safety aspects of the Laguna Verde nuclear power plant

    International Nuclear Information System (INIS)

    Sanchez G, J.

    1991-01-01

    The main activities undertaken by two research institutes of Mexico, the Instituto de Investigaciones Electricas and the Instituto Nacional de Investigaciones Nucleares, related to the safety of the Laguna Verde Nuclear Power Plant, are described. Among these activities, the development of a system for data acquisition and analysis during pre-operational tests, the design and construction of a full-scope simulator, the in-core fuel management and the establishment of an equipment qualification laboratory, stand out. It is considered that there exists a large potential for further participation. (author)

  20. Produção e estado nutricional do milho em cultivo intercalar com adubos verdes

    Directory of Open Access Journals (Sweden)

    R. Heinrichs

    2002-03-01

    Full Text Available A utilização da adubação verde para estabelecer a diversidade e o equilíbrio do sistema de produção é um dos paradigmas da agricultura moderna. Com o objetivo de avaliar a produção e o estado nutricional da cultura de milho sob cultivo intercalar com adubos verdes, foi realizado, entre 1995 e 1997, um experimento em campo, em Piracicaba (SP, em um Litossolo Vermelho eutrófico. O milho foi semeado no espaçamento de 0,90m nas entrelinhas, perfazendo aproximadamente 50.000plantas por hectare. Os tratamentos constaram de uma testemunha, sem cultivo intercalar, e quatro espécies de adubos verdes: mucuna anã (Mucuna deeringiana (Bort. Merr, guandu anão (Cajanus cajan (L. Millsp, crotalária (Crotalaria spectabilis Roth e feijão-de-porco (Canavalia ensiformis (L. DC., semeados sem adubação, no meio da entrelinha, distante 45cm da linha do milho, em duas épocas: simultânea à semeadura do milho e 30dias após. O solo, no primeiro ano, foi preparado sob sistema convencional e, no segundo, cultivaram-se as culturas sob semeadura direta. O delineamento experimental foi de blocos ao acaso com parcelas subdivididas e quatro repetições. O estado nutricional e a produção de grãos do milho apresentaram melhores resultados no cultivo consorciado com feijão-de-porco. Os efeitos positivos desta espécie na produtividade de grãos de milho foram mais acentuados no segundo ano de adoção do cultivo consorciado, quando o sistema de manejo do solo foi semeadura direta. A semeadura dos adubos verdes simultânea ao milho foi o manejo mais recomendável, por não prejudicar o desenvolvimento do milho e reduzir a operação pós-plantio.

  1. Modernization of electric power systems of the Laguna Verde Nuclear Power Plant

    International Nuclear Information System (INIS)

    Gabaldon, M. A.; Gonzalez, J. J.; Prieto, I.

    2011-01-01

    The Power Increase Project of Laguna Verde Nuclear Plant has entailed the replacement, in one unique outage, of the main power electrical systems of the Plant (Isolated Phase Bars, Generator Circuit Breaker and Main Transformer) as well as the replacement of the Turbo-group. The simultaneous substitution of these entire system has never been done by any other Plant in the world, representing an engineering challenge that embraced the design of the new equipment up to the planning, coordination and management of the construction and commissioning works, which were successfully carried out by Iberdrola within the established outage period /47 days) for both units. (Author)

  2. Estimativa do risco de traça-verde Palpita vitrealis (Rossi) amplificada por contaminante?

    OpenAIRE

    Mateus, Helena; Pereira, Cândido; Cardoso, Miguel; Manteigas, Ana; Sequeira, Manuel; Figueiredo, Elisabete; Luz, J.P.; Mexia, António

    2012-01-01

    A monitorização da população de traça-verde foi efectuada, em olivais da Cova da Beira, em armadilhas com três formulações comerciais de feromona sexual: Russell (em armadilha funil tricolor) e SEDQ e Suterra (ambas em armadilha delta). As contagens, semanais, decorreram: nas armadilhas iscadas com feromona SEDQ, entre Março e Novembro de 2010; nas armadilhas com feromona Russell e Suterra, de Setembro a Novembro. As capturas variaram de 0 a 4 indivíduos/armadilha/semana. Nas armadilhas com S...

  3. Estimativa do risco de Traça-Verde, Palpita vitrealis (Rossi) amplificada por contaminate?

    OpenAIRE

    Mateus, Helena; Pereira, Cândido; Cardoso, Miguel; Manteigas, Ana; Sequeira, Manuel; Figueiredo, Elisabete; Luz, João Pedro; Mexia, António

    2012-01-01

    A monitorização da população de traça-verde foi efectuada, em olivais da Cova da Beira, em armadilhas com três formulações comerciais de feromona sexual: Russell (em armadilha funil tricolor) e SEDQ e Suterra (ambas em armadilha delta). As contagens, semanais, decorreram: nas armadilhas iscadas com feromona SEDQ, entre Março e Novembro de 2010; nas armadilhas com feromona Russell e Suterra, de Setembro a Novembro. As capturas variaram de 0 a 4 indivíduos/armadilha/semana. Nas armadilhas com S...

  4. The continental slope current system between Cape Verde and the Canary Islands

    Directory of Open Access Journals (Sweden)

    Jesús Peña-Izquierdo

    2012-08-01

    Full Text Available We use hydrographic, velocity and drifter data from a cruise carried out in November 2008 to describe the continental slope current system in the upper thermocline (down to 600 m between Cape Verde and the Canary Islands. The major feature in the region is the Cape Verde Frontal Zone (CVFZ, separating waters from tropical (southern and subtropical (northern origin. The CVFZ is found to intersect the slope north of Cape Blanc, between 22°N and 23°N, but we find that southern waters are predominant over the slope as far north as 24°N. South of Cape Blanc (21.25°N the Poleward Undercurrent (PUC is a prominent northward jet (50 km wide, reaching down to 300 m and indistinguishable from the surface Mauritanian Current. North of Cape Blanc the upwelling front is found far offshore, opening a near-slope northward path to the PUC. Nevertheless, the northward PUC transport decreases from 2.8 Sv at 18°N to 1.7 Sv at 24°N, with about 1 Sv recirculating ofshore just south of Cape Blanc, in agreement with the trajectory of subsurface drifters. South of the CVFZ there is an abrupt thermohaline transition at σϴ=26.85 kg m–3, which indicates the lower limit of the relatively pure (low salt and high oxygen content South Atlantic Central Water (SACW variety that coexists with the dominant locally-diluted (salinity increases through mixing with North Atlantic Central Water but oxygen diminishes because of enhanced remineralization Cape Verde (SACWcv variety. At 16°N about 70% of the PUC transport corresponds to the SACW variety but but this is transformed into 40% SACWcv at 24°N. However, between Cape Verde and Cape Blanc and in the 26.85 < σϴ < 27.1 layer, we measure up to 0.8 Sv of SACWcv being transported south. The results strongly endorse the idea that the slope current system plays a major role in tropical-subtropical water-mass exchange.

  5. Techos verdes y el confort térmico en Angostillo, Veracruz, México.

    OpenAIRE

    Beltrán Melgarejo, Abraham

    2013-01-01

    Se diseñó un prototipo de techo verde con enredaderas tropicales y se evaluó el confort térmico brindado por éste en viviendas de una zona rural tropical. Con base en entrevistas a viveristas de la región centro de Veracruz y un recorrido de campo, se preseleccionaron cinco especies Mandevilla sanderi, Solandra maxima, Passiflora edulis, Thunbergia alata y Cissus verticillata. Se evaluó la adaptabilidad de éstas al ambiente sobre techos modelo en condiciones de campo, midiendo sus tasas de cr...

  6. In Search of Saint John: Reinventing Tradition for Migrants and Tourists in Cabo Verde

    Directory of Open Access Journals (Sweden)

    Isabel P.B. Fêo Rodrigues

    2016-11-01

    Full Text Available Following the revitalization of a popular feasts such as San Jon in Cabo Verde, this article highlights how this traditional feast is co-produced by those who left their rural villages in search of a better life in the USA and those who stay hoping to enhance the emigrant’s desire to return. These collective events not only help to sustain a relationship with a homeland, they also contribute to the flows of emigrant remittances and a transnational flow of gift exchange. In between departing and returning, migrants revitalize traditions, contribute to the wellbeing of rural lifestyles, and become agents of economic and cultural investment in their homeland.

  7. Palo Verde Nuclear Generating Station: an example of the state role in regional nuclear projects

    International Nuclear Information System (INIS)

    Pasternak, A.

    1980-10-01

    A nuclear power plant siting policy which confines new construction to existing sites will lead to the formation of large regional power centers, each involving many utilities from several states. The Palo Verde Nuclear Project in Arizona has been examined in terms of the role state regulation plays in large regional nuclear projects. State regulatory processes do not reflect the regional nature of large power centers. Decisions and actions by individual state regulatory commissions create risk and uncertainty for all the utility participants in regional projects. A climate and mechanism to encourage and facilitate interstate cooperation are needed to enhance the viability of the confined siting policy and the regional power center concept

  8. EMI – young HIMU rock association at the Cape Verde Islands revisited: on the role of oceanic carbonatites

    DEFF Research Database (Denmark)

    Holm, Paul Martin; Kokfelt, Thomas Find; Dyhr, Charlotte Thorup

    Isotopic compositions of the Cape Verde (Central) hotspot magmas indicate a predominant influence from young HIMU and EM-1 type sources. Detailed modelling based on high precision Sr, Nd and Pb (DS) isotope data suggests that seven local mantle end-members explain the isotopic variation within five...... HIMU. Carbonatites are widespread throughout Cape Verde Islands but volumetrically minor and are low in Ti, K, and Rb. In several silicate rocks from all three islands low Ti/Eu is evidence for a carbonatite component and is accompanied by LREE enrichment, and relatively low K and Rb. Other rocks have...

  9. A five million year record of compositional variations in mantle sources to magmatism on Santiago, southern Cape Verde archipelago

    DEFF Research Database (Denmark)

    Barker, Abigail K.; Holm, Paul Martin; Peate, David W.

    2010-01-01

    High-precision Pb isotope data and Sr-Nd-Hf isotope data are presented together with major and trace element data for samples spanning the 4.6 Ma history of volcanism at Santiago, in the southern Cape Verde islands. Pb isotope data confirm the positive ¿8/4 signature of the southern islands...... indicating that the north-south compositional heterogeneity in the Cape Verde archipelago has persisted for at least 4.6 Ma. The Santiago volcanics show distinct compositional differences between the old, intermediate and young volcanics, and suggest greater involvement of an enriched mantle (EM1)-like...

  10. Desarrollo de alimentos tipo snack de bajo contenido graso a partir de discos de manzana verde

    OpenAIRE

    Tavera Quiroz, María José

    2015-01-01

    Esta investigación se basó en el desarrollo de productos tipo snack bajos en grasa a partir de manzana verde Granny Smith (Malus domestica). Se desarrollaron snacks a partir de manzanas verdes estudiando diferentes alternativas de cocción (fritado, horneado o su combinación) con el objetivo de obtener productos con menor contenido graso que los tradicionales pero con las propiedades que los consumidores valoran en los mismos, como el color y la textura crocante. Para ello se analizó...

  11. Entre la publicidad social y la publicidad ambiental: una revisión de la contrapublicidad verde de Greenpeace

    OpenAIRE

    Martín Villar, Sara

    2015-01-01

    Este trabajo presenta un análisis y evolución de la publicidad social, sus efectos, características y tendencias en nuestra sociedad. Se conceptualiza la publicidad verde como medio de denuncia de lo social, y se realiza una recopilación de las acciones de Greenpeace y su contrapublicidad para detener la deforestación de los bosques de Indonesia. Una aproximación a los conceptos de publicidad social, publicidad ambiental, publicidad verde y contrapublicidad. Grado en Publicidad y Relacione...

  12. Study of genetic markers of CODIS and ESS systems in a population of individuals from Cabo Verde living in Lisboa.

    Science.gov (United States)

    Resende, Ana; Amorim, António; da Silva, Cláudia Vieira; Ribeiro, Teresa; Porto, Maria João; Costa Santos, Jorge; Afonso Costa, Heloísa

    2017-01-01

    Twenty-two autosomal short tandem repeats included in the PowerPlex® Fusion System Amplification kit (Promega Corporation) were genotyped in a population sample of 500 unrelated individuals from Cabo Verde living in Lisboa. Allelic frequency data and forensic and statistical parameters were calculated and evaluated in this work. The genetic relationship among immigrant population from Cabo Verde living in Lisboa and other populations, such as Brazilian and Angola immigrants living in Lisboa; Afro-Americans, Caucasians, Hispanics and Asians living in the USA and the population from Lisboa was assessed, and a multidimensional scaling plot was drown to show these results.

  13. Evaluación de diferentes métodos para la transformación de la pulpa de café en abono orgánico en fincas cafeteras

    OpenAIRE

    Moreno Clavijo, Nidia; Romero Jiménez, Ariel Adrián

    2016-01-01

    Tesis (Maestría en Desarrollo Sostenible y Medio Ambiente). Universidad de Manizales. Facultad de Ciencias Contables, Económicas y Administrativas. CIMAD, 2016 En la zona cafetera del país, se generan subproductos altamente contaminantes para las fuentes hídricas, ocasionando problemas ambientales con repercusiones sociales, siendo la pulpa del café el subproducto de mayor impacto. Con el objetivo de contribuir a la disminución de la contaminación y de aprovechar el subproducto como fuente...

  14. Evaluación de herramientas de simulación y estudio de las preferencias del color en daltónicos dicrómatas

    OpenAIRE

    Álvaro Llorente, Leticia

    2016-01-01

    Los observadores con visión normal del color (tricrómatas normales) poseen tres tipos de conos retinianos, que responden máximamente a las longitudes de onda larga (conos L), media (M) y corta (S). Los dicromatismos rojo-verde son alteraciones genéticas de la visión del color en las que, aparte del fotopigmento presente en los conos S, únicamente existe otro tipo de fotopigmento, el que contienen los conos L (deuteranopia) o M (protanopia). Afectan a un 2% de los varones y conllevan una discr...

  15. The National Institute of Nuclear Research (ININ) and its participation in the External Radiological Emergency Plans at Laguna Verde Power plant; El ININ y su participacion en el Plan de Emergencia Radiologica Externo de la Central Laguna Verde

    Energy Technology Data Exchange (ETDEWEB)

    Suarez, G. [Instituto Nacional de Investigaciones Nucleares, Departamento de Proteccion Radiologica, A.P. 18-1027, 11801 Mexico D.F. (Mexico)

    1998-07-01

    In this article it is described the form in which the ININ participates in the External Radiological Emergency Plan at Laguna Verde Power plant. It is set the objective, mission and organization of this plan. The responsibilities and activities that plan has assigned are mentioned also the organization to fulfil them and the obtained results during 9 years of participation. (Author)

  16. Estimation of fast neutron fluence in steel specimens type Laguna Verde in TRIGA Mark III reactor

    International Nuclear Information System (INIS)

    Galicia A, J.; Francois L, J. L.; Aguilar H, F.

    2015-09-01

    The main purpose of this work is to obtain the fluence of fast neutrons recorded within four specimens of carbon steel, similar to the material having the vessels of the BWR reactors of the nuclear power plant of Laguna Verde when subjected to neutron flux in a experimental facility of the TRIGA Mark III reactor, calculating an irradiation time to age the material so accelerated. For the calculation of the neutron flux in the specimens was used the Monte Carlo code MCNP5. In an initial stage, three sheets of natural molybdenum and molybdenum trioxide (MoO 3 ) were incorporated into a model developed of the TRIGA reactor operating at 1 M Wth, to calculate the resulting activity by setting a certain time of irradiation. The results obtained were compared with experimentally measured activities in these same materials to validate the calculated neutron flux in the model used. Subsequently, the fast neutron flux received by the steel specimens to incorporate them in the experimental facility E-16 of the reactor core model operating at nominal maximum power in steady-state was calculated, already from these calculations the irradiation time required was obtained for values of the neutron flux in the range of 10 18 n/cm 2 , which is estimated for the case of Laguna Verde after 32 years of effective operation at maximum power. (Author)

  17. The Palo Verde story: a foundation for future multi-station nuclear power plants

    International Nuclear Information System (INIS)

    Brunt, Jr.E.E.Van; Ferguson, C.

    1987-01-01

    In 1973, the design and planning for the Palo Verde Nuclear Generating Station Was started featuring three 3800 MWt Combustion Engineering Standard System 80 Nuclear Steam Supply Systems. Arizona Public Service Company (APS) was the Project Manager and Operating Agent and Bechtel Power Corporation the architect/engineer and constructor. The Palo Verde units are located in a desert environment some 50 miles west of Phoenix, Arizona. It is a 'dry site' in that there are no liquid discharges from the site. The cooling tower makeup water sewage is waste effluent from the City of Phoenix treated at an on site reclamation facility. The effluent has had primary and secondary treatment at the Phoenix plant prior to delivery to PVNGS. The units are physically separate from each other but are of identical design. There are no shared safety systems between the units. Unit 1 and Unit 2 are both in commercial operation (January, 1986 and September, 1986 respectively). Unit 3 is scheduled to load fuel late in the first quarter of 1987. This paper presents some of the engineering and management practices used during design, construction, and startup and operational experiences and other unique features of this multi-unit nuclear station. The site arrangement is shown in Figure 1

  18. Oxygen, hydrogen, and helium isotopes for investigating groundwater systems of the Cape Verde Islands, West Africa

    Science.gov (United States)

    Heilweil, V.M.; Solomon, K.D.; Gingerich, S.B.; Verstraeten, Ingrid M.

    2009-01-01

    Stable isotopes (??18O, ??2H), tritium (3H), and helium isotopes (3He, 4He) were used for evaluating groundwater recharge sources, flow paths, and residence times of three watersheds in the Cape Verde Islands (West Africa). Stable isotopes indicate the predominance of high-elevation precipitation that undergoes little evaporation prior to groundwater recharge. In contrast to other active oceanic hotspots, environmental tracers show that deep geothermal circulation does not strongly affect groundwater. Low tritium concentrations at seven groundwater sites indicate groundwater residence times of more than 50 years. Higher tritium values at other sites suggest some recent recharge. High 4He and 3He/4He ratios precluded 3H/3He dating at six sites. These high 3He/4He ratios (R/Ra values of up to 8.3) are consistent with reported mantle derived helium of oceanic island basalts in Cape Verde and provided end-member constraints for improved dating at seven other locations. Tritium and 3H/3He dating shows that S??o Nicolau Island's Ribeira Faj?? Basin has groundwater residence times of more than 50 years, whereas Fogo Island's Mosteiros Basin and Santo Ant??o Island's Ribeira Paul Basin contain a mixture of young and old groundwater. Young ages at selected sites within these two basins indicate local recharge and potential groundwater susceptibility to surface contamination and/or salt-water intrusion. ?? Springer-Verlag 2009.

  19. Microbial Diversity and Toxin Risk in Tropical Freshwater Reservoirs of Cape Verde.

    Science.gov (United States)

    Semedo-Aguiar, Ana P; Pereira-Leal, Jose B; Leite, Ricardo B

    2018-05-05

    The Cape Verde islands are part of the African Sahelian arid belt that possesses an erratic rain pattern prompting the need for water reservoirs, which are now critical for the country’s sustainability. Worldwide, freshwater cyanobacterial blooms are increasing in frequency due to global climate change and the eutrophication of water bodies, particularly in reservoirs. To date, there have been no risk assessments of cyanobacterial toxin production in these man-made structures. We evaluated this potential risk using 16S rRNA gene amplicon sequencing and full metagenome sequencing in freshwater reservoirs of Cape Verde. Our analysis revealed the presence of several potentially toxic cyanobacterial genera in all sampled reservoirs. Faveta potentially toxic and bloom-forming Microcystis sp., dominated our samples, while a Cryptomonas green algae and Gammaproteobacteria dominated Saquinho and Poilão reservoirs. We reconstructed and assembled the Microcystis genome, extracted from the metagenome of bulk DNA from Faveta water. Phylogenetic analysis of Microcystis cf. aeruginosa CV01’s genome revealed its close relationship with other Microcystis genomes, as well as clustering with other continental African strains, suggesting geographical coherency. In addition, it revealed several clusters of known toxin-producing genes. This survey reinforces the need to better understand the country’s microbial ecology as a whole of water reservoirs on the rise.

  20. Epidemiology of the Zika Virus Outbreak in the Cabo Verde Islands, West Africa.

    Science.gov (United States)

    Lourenço, José; de Lourdes Monteiro, Maria; Valdez, Tomás; Monteiro Rodrigues, Júlio; Pybus, Oliver; Rodrigues Faria, Nuno

    2018-03-15

    The Zika virus (ZIKV) outbreak in the island nation of Cabo Verde was of unprecedented magnitude in Africa and the first to be associated with microcephaly in the continent. Using a simple mathematical framework we present a first epidemiological assessment of attack and observation rates from 7,580 ZIKV notified cases and 18 microcephaly reports between July 2015 and May 2016. In line with observations from the Americas and elsewhere, the single-wave Cabo Verdean ZIKV epidemic was characterized by a basic reproductive number of 1.85 (95% CI, 1.5 - 2.2), with overall the attack rate of 51.1% (range 42.1 - 61.1) and observation rate of 2.7% (range 2.29 - 3.33). Current herd-immunity may not be sufficient to prevent future small-to-medium epidemics in Cabo Verde. Together with a small observation rate, these results highlight the need for rapid and integrated epidemiological, molecular and genomic surveillance to tackle forthcoming outbreaks of ZIKV and other arboviruses.

  1. First report of Dirofilaria immitis in the Republic of Cape Verde.

    Science.gov (United States)

    Pereira, Cristina; Almeida, Conceição; Malta, Manuel; Vilaça, Raquel; Payo-Puente, Pablo

    2013-02-18

    In Maio Island, Republic of Cape Verde, a seven-year old mongrel female dog exhibiting severe generalized adenomegaly and a poor body condition was examined during an animal welfare campaign. A blood smear was drawn from peripheral blood collection and several organisms consistent with Dirofilaria immitis microfilariae were identified. Both the antigen test conducted from plasma and the RT-PCR test performed from the blood smear sample were positive for D. immitis. This is, to the best of our knowledge, the first report of D. immitis in Cape Verde. The fact that the dog was autochthonous and had never left the island strongly suggests there might be other animals infected with the parasite. Our finding confirms the existence of the parasite in the canine population and necessarily implies the presence of a competent vector. As a serious cardiopulmonary disease and with the risk of the pathogen spreading rapidly, broader epidemiological studies need to be conducted to determine D. immitis prevalence in the canine population of Maio Island. Copyright © 2012 Elsevier B.V. All rights reserved.

  2. Under-reporting of tuberculosis in Praia, Cape Verde, from 2006 to 2012.

    Science.gov (United States)

    Furtado da Luz, E; Braga, J U

    2018-03-01

    According to World Health Organization (WHO) estimates, the under-reporting rate for tuberculosis (TB) in Cape Verde between 2006 and 2012 was 49%. However, the WHO recognises the challenges associated with this estimation process and recommends implementing other methods, such as record linkage, to combat TB under-reporting. To estimate and analyse under-reporting of cases by TB surveillance health units and to evaluate TB cases retrieved from other TB diagnostic sources in Praia, Cape Verde, from 2006 to 2012. This cross-sectional study evaluated under-reporting using the following data: 1) the under-reporting index from TB reporting health units (RHUs), where the number of validated TB cases from RHUs was compared with data from the National Programme for the Fight against Tuberculosis and Leprosy (NPFTL); and 2) the under-reporting index among overall data sources, or a comparison of the number of all validated TB cases from all sources with NPFTL data. The TB under-reporting rate was 40% in Praia during the study period, and results were influenced by laboratory findings. The TB under-reporting rate was very similar to the rate estimated by the WHO. TB surveillance must be improved to reduce under-reporting.

  3. The continuous improvement system of nuclear power plant of Laguna Verde

    International Nuclear Information System (INIS)

    Rivera C, A.

    2009-10-01

    This paper describes the continuous improvement system of nuclear power plant of Laguna Verde and the achievements in implementing the same and additionally two study cases are presents. In February 2009 is noteworthy because the World Association of Nuclear Operators we identified as a learning organization, qualification which shows that the continuous improvement system has matured, and this system will expose as I get to learn to capitalize on our own experiences and external experiences diffused by the nuclear industry. In 2007 the management of nuclear power plants integrates its improvement systems and calls it continuous improvement system and is presented in the same extensive report that won the National Quality Award. This system is made up of 5 subsystems operating individually and are also related 1) human performance; 2) referential comparison or benchmarking; 3) self-assessment; 4) corrective action and 5) external operating experience. Five subsystems that plan, generate, capture, manage, communicate and protect the knowledge generated during the processes execution of nuclear power plant of Laguna Verde, as well as from external sources. The target set in 2007 was to increase the intellectual capital to always give response to meeting the security requirements, but creating a higher value to quality, customer, environment protection and society. In brief each of them, highlighting the objective, expectations management, implementation and some benefits. At the end they will describe two study cases selected to illustrate these cases as the organization learns by their continuous improvement system. (Author)

  4. Auxiliary feedwater system risk-based inspection guide for the Palo Verde Nuclear Power Plant

    International Nuclear Information System (INIS)

    Bumgardner, J.D.; Moffitt, N.E.; Gore, B.F.; Vo, T.V.; Sloan, J.A.

    1993-02-01

    In a study sponsored by the US Nuclear Regulatory Commission (NRC), Pacific Northwest Laboratory has developed and applied a methodology for deriving plant-specific risk-based inspection guidance for the auxiliary feedwater (AFW) system at pressurized water reactors that have not undergone probabilistic risk assessment (PRA). This methodology uses existing PRA results and plant operating experience information. Existing PRA-based inspection guidance information recently developed for the NRC for various plants was used to identify generic component failure modes. This information was then combined with plant-specific and industry-wide component information and failure data to identify failure modes and failure mechanisms for the AFW system at the selected plants. Palo Verde was selected as one of a series of plants for study. The product of this effort is a prioritized listing of AFW failures which have occurred at the plant and at other PWRs. This listing is intended for use by NRC inspectors in the preparation of inspection plans addressing AFW risk-important components at the Palo Verde plants

  5. Validation of the thermal balance of Laguna Verde turbine under conditions of extended power increase

    International Nuclear Information System (INIS)

    Castaneda G, M. A.; Cruz B, H. J.; Mercado V, J. J.; Cardenas J, J. B.; Garcia de la C, F. M.

    2012-10-01

    The present work is a continuation of the task: Modeling of the vapor cycle of Laguna Verde with the PEPSE code to conditions of thermal power licensed at present (2027 MWt) in which the modeling of the vapor cycle of the nuclear power plant of Laguna Verde was realized with PEPSE code (Performance Evaluation of Power System Efficiencies). Once reached the conditions of nominal operation of extended power increase, operating both units to 2371 MWt; after the tests phase of starting-up and operation is necessary to carry out a verification of the proposed design of the vapor cycle for the new operation conditions. All this, having in consideration that the vapor cycle designer only knows the detail of the prospective performance of the main turbine, for all the other components (for example pumps, heat inter changers, valves, reactor, humidity separators and re-heaters, condensers, etc.) makes generic suppositions based on engineering judgment. This way carries out the calculations of thermal balance to determine the guaranteed gross power. The purpose of the present work is to comment the detail of the validation carried out of the specific thermal balance (thermal kit) of the nuclear power plant, making use of the design characteristics of the different components that conform the vapor cycle. (Author)

  6. La economía verde: un cambio ambiental y social necesario en el mundo actual

    Directory of Open Access Journals (Sweden)

    Oscar Iván Vargas Pineda

    2017-09-01

    Full Text Available El concepto de economía verde es una de las estrategias globales para enfrentar las crisis económica y ambiental que sufren las sociedades contemporáneas. Metodológicamente, se aborda la conceptualización, los objetivos, la implementación y las críticas de diversos sectores de la sociedad a este nuevo paradigma económico. Se halló que autores y organizaciones civiles tienen grandes expectativas frente a los retos y desafíos de esta estrategia global que tiene dentro de sus objetivos la sustentabilidad, la erradicación de la pobreza y la inclusión de sectores sociales vulnerables. Se concluye que la economía verde puede aportar al mantenimiento de un ambiente sano y al uso adecuado de los servicios ecosistémicos, tanto para la generación presente como para las generaciones futuras.

  7. Irony and joking in ethnographic fieldwork: Reflections from Santo Antão Island (Cape Verde

    Directory of Open Access Journals (Sweden)

    Martina Giuffrè

    2016-08-01

    Full Text Available In this essay I address the crucial role of irony and joking in anthropology with a focus on the ethnographic relationship. My starting point is field research carried out from 2001 to 2004 on Santo Antão island (Cape Verde, specifically Ponta do Sol. In Cape Verdean practice, jokes and irony represent customary communicational modes and important tools for building relationships: the ultimate means of achieving “cultural intimacy”, they are used almost as rites of initiation to bring newcomers into the community and at the same time to manage ambiguities. Indeed, it was precisely through irony that my interlocutors were able to perfectly capture my ambiguous insider/outsider position. In this specific ethnographic context, the ironic relationship is understood as both a key communication tool in the ethnographic encounter and an unusual rite of passage: although strangers/anthropologists can only be accepted if they become Cape Verdean to some degree, in reality they are never really able to complete this passage. The essay briefly reviews irony and joking in anthropology and focuses on aspects of ironic interactions in Cape Verde that are linked to intercultural relations in the ethnographic context as a site of uncertain communication. I stress how, especially in intercultural contexts, the ambiguity of irony represents not a barrier to communication but rather a key element of understanding between anthropologists and informants as well as a significant heuristic device.

  8. DDE in sediments of the Palos Verdes shelf, California: In situ transformation rates and geochemical fate

    Science.gov (United States)

    Eganhouse, R.P.; Pontolillo, J.

    2008-01-01

    From 1947 to 1971 the world's largest manufacturer of DDT discharged process wastes into the sewers of Los Angeles County. Roughly 870-1450 t of DDT were released to the ocean off Palos Verdes, CA, a portion of which (???100 t) resides in sediments on the continental shelf and slope. The most abundant DDT compound in the sediments, p,p???-DDE, is degrading by reductive dechlorination, butthe rate of transformation and factors controlling it are not well understood. In order to estimate in situ transformation rates and predict the long-term fate of p,p???-DDE, box cores were collected in 1992 and 2003 from a single location on the Palos Verdes Shelf and analyzed for 8 DDT compounds and 84 polychlorinated biphenyl (PCB) congeners. The PCBs show no evidence of dechlorination, and inventories did not change between 1992 and 2003. By contrast, the inventory of p,p???-DDE decreased by 43%, whereas that of p,p???-DDMU, the putative reductive dechlorination product increased by 34%. The first-order transformation rate for p,p???-DDE at the study site is 0.051 ?? 0.006 yr-1. A multistep reaction model suggests that inventories of p,p???-DDE and p,p???-DDMU will continue to decline, whereas that of p,p???-DDNU will reach a maximum around 2014.

  9. Influência de áreas verdes urbanas sobre a mirmecofauna

    Directory of Open Access Journals (Sweden)

    Milene Andrade Estrada

    Full Text Available O trabalho objetivou estudar a influência de características da arborização das áreas verdes urbanas sobre a mirmecofauna. A pesquisa foi conduzida no Município de Três Rios-RJ, em um parque urbano e em cinco praças públicas arborizadas. Foram obtidas a densidade de árvores, a densidade de espécies de árvores e a temperatura do ar. As formigas foram coletadas no solo e sobre o tronco de árvores, com iscas de sardinha. Foram coletadas 44 espécies de formigas, 26 espécies no solo e 37 espécies nas árvores. A densidade de espécies de árvores influenciou positivamente o número total de espécies de formigas e a diversidade de espécies coletadas nas árvores. Conclui-se que o aumento da densidade de espécies de árvores nas áreas verdes urbanas pode colaborar para a conservação da diversidade biológica.

  10. A radiation monitoring system model for the Laguna Verde nuclear power training simulator

    International Nuclear Information System (INIS)

    Ocampo, M.H.; DeAlbornoz, B.A.

    1988-01-01

    A model for the Radiation Monitoring System of the Laguna Verde Boiling Water Reactor training simulator is presented. This model comprises enough definitions to assure interactions with the processes related, directly or indirectly, with the transport of radioisotopes. It is capable of following a dynamic behavior of the plant so an operator could be trained to become aware of nuclear radiation hazards. The model is composed of three parts: the electronics for the Process and Area Radiation Monitoring System; a lumped parameter transport model for the most representative radioisotopes; and the interactions with the modeled processes as well as with process not being simulated. The first part represents the radiation monitor controls in the vertical board panels of the nuclear station. The second part allows the carrying of nuclear isotopes between processes. The third part defines the way that the process interacts with the electronics at the point of release to environment or the point of detection. Each part of the model has been tested individually, and the transport model has been incorporated as a part of each process required to simulate nuclear radiation. The model parameters has been calculated using typical BWR nuclear radiation data, and Laguna Verde heat balance data at 100% design power. However, tunning will be necessary once the Simulator is integrated and tested. The tunning allows each detecting channel to behave as expected

  11. Verde plant bug (Hemiptera: Miridae) feeding injury to cotton bolls charcterized by boll age, size and damage ratings

    Science.gov (United States)

    Our studies over 2 years (2009 and 2010) and 2 locations (Weslaco and Corpus Christi, TX) investigated the relationship of feeding-injury of the verde plant bug, Creontiades signatus Distant, to a range of cotton boll age classes further defined by boll diameter and accumulated degree-days (anthesis...

  12. Comparison of cotton square and boll damage and resulting lint and seed loss caused by verde plant bug, Creontiades signatus

    Science.gov (United States)

    Retention of bolls and squares (referred to as fruit retention), boll damage, and resulting cotton lint and seed weight loss were assessed when two (2010) and three (2011) age classes of sympodial fruiting branches with different ages of squares and bolls where exposed to verde plant bug, Creontiade...

  13. Cape Verde and Its People: A Short History, Part I [And] Folk Tales of the Cape Verdean People.

    Science.gov (United States)

    Almeida, Raymond A.; Nyhan, Patricia

    Two booklets provide an overview of the history and folklore of Cape Verde, a group of islands lying 370 miles off the west coast of Africa. One booklet describes the history of the islands which were probably settled initially by Africans from the west coast of Africa. By the 15th century the islands were colonized by Portuguese and other…

  14. 75 FR 15745 - Arizona Public Service Company, et al. Palo Verde Nuclear Generating Station, Units 1, 2, and 3...

    Science.gov (United States)

    2010-03-30

    ...] Arizona Public Service Company, et al. Palo Verde Nuclear Generating Station, Units 1, 2, and 3; Exemption 1.0 Background The Arizona Public Service Company (APS, the licensee) is the holder of Facility... Generating Station (PVNGS), Units 1, 2, and 3, respectively. The licenses provide, among other things, that...

  15. 75 FR 53985 - Arizona Public Service Company, et al., Palo Verde Nuclear Generating Station, Unit 3; Temporary...

    Science.gov (United States)

    2010-09-02

    ... NUCLEAR REGULATORY COMMISSION [Docket No. STN 50-530; NRC-2010-0281] Arizona Public Service Company, et al., Palo Verde Nuclear Generating Station, Unit 3; Temporary Exemption 1.0 Background Arizona Public Service Company (APS, the licensee) is the holder of Facility Operating License No. NPF-74, which...

  16. Viaje hacia el océano. Estrategias para la conservación de la Tortuga Verde*

    Directory of Open Access Journals (Sweden)

    A. González-z.

    2006-07-01

    que un investigador que pretenda implementar un proyecto similar pueda guiarse y lograr su objetivo. *Pasantía: estudio sistemático de la anidación de la tortuga verde, Chelonia mydas, en el archipiélago de Galápagos. Temporada 2005-2006.

  17. Modernization of the Electric Power Systems (transformers, rods and switches) in the Laguna Verde Nuclear Power Plant (Mexico)

    International Nuclear Information System (INIS)

    Gonzalez Solarzano, J. J.; Gabaldon Martin, M. A.; Pallisa Nunez, J.; Florez Ordeonez, A.; Fernandez Corbeira, A.; Prieto Diez, I.

    2010-01-01

    Description of the changes made in the Electric Power Systems as a part of the power increase project in the Laguna Verde Nuclear Power Plant (Mexico). The main electrical changes to make, besides the turbo group, are the main generation transformers, the isolated rods and the generation switch.

  18. Technical assistance in relationship with the reloading analysis of the Laguna Verde Unit 2 reactor. Executive abstract

    International Nuclear Information System (INIS)

    Alonso V, G.; Castro B, M.; Gallegos E, R.; Hernandez L, H.; Montes T, J.L.; Ortiz S, J. J.; Perusquia C, R.

    1993-11-01

    The objective of the report was to carry out a comparative analysis of costs of energy generation among the designs GE9B of General Electric, 9X9-IX of SIEMENS and SVEA-96 of ABB ATOM, proposed to be used as recharge fuel in the Unit 2 of the Laguna Verde Nuclear Power station. (Author)

  19. Una nueva especie de rana de cristal del género Hyalinobatrachium (Anura: Centrolenidae del Delta del Río Orinoco, Venezuela

    Directory of Open Access Journals (Sweden)

    J. Celsa Señaris

    2001-12-01

    Full Text Available Se describe una nueva especie de Hyalinobatrachium del grupo fleischmanni, H. mondolfii, de las planicies inundables del delta del río Orinoco, Venezuela. Hyalinobatrachium mondolfii se distingue del resto de las especies del grupo por la siguiente combinación de caracteres: peritoneo parietal translúcido, pericardio y peritoneos visceral y hepático blancos, coloración dorsal en vida verde claro con diminutos puntos amarillos y en preservativo crema uniforme con diminutos melanóforos oscuros (visibles solo bajo magnificación, huesos blancos en vida, palmeadura de manos y pies extensa, cabeza redondeada en vista dorsal e inclinada en vista lateral, piel dorsal granular y un canto con frecuencia fundamental superior a los 5 000 HzA new species of Hyalinobatrachium of the fleischmanni group, H. mondolfii, is described from the Orinoco delta floodplains in Venezuela. This new species can be distinguished from other congeners by the following combination of characters: parietal peritoneum clear, pericardium white, visceral and hepatic peritoneum white, color in life pale green with diminute yellow spots and, in preservative, cream with small dark melanophores (visible only under magnification, bones white in life, extense webbing, snout round in dorsal view and inclinate in lateral view, dorsal skin granulate and a advertisement call with a fundamental frequency greater than 5000 Hz

  20. Aislamiento e identificaci?n de diez cepas bacterianas desnitrificantes a partir de un suelo agr?cola contaminado con abonos nitrogenados proveniente de una finca productora de cebolla en la Laguna de Tota, Boyac?, Colombia

    OpenAIRE

    Ostos Ortiz, Olga Lucia; Benavides L?pez de Mesa, Joaqu?n; Quintero, Gladys

    2006-01-01

    Este articulo presenta los resultados de la versatilidad adaptativa y tolerancia de una consorcio bacteriano constituido por 10 cepas bacterianas end?micas de un suelo agr?cola contaminado, proveniente de una finca productora de cebolla ubicada en la laguna de Tota en Aquitania, Boyac?, Colombia, expuesto al uso incontrolado de fertilizantes nitrogenados. La consorcio bacteriano aislado del suelo est? conformado por: Bacillus megaterium, Bacillus licheniformis, Pseudomonas stutzeri, Acinetoba...

  1. MGS Esmeralda: new large seed mungbean cultivar MGS Esmeralda: nova cultivar de mungo-verde de sementes grandes

    Directory of Open Access Journals (Sweden)

    Rogério Faria Vieira

    2008-06-01

    Full Text Available Mungbean cultivar MGS Esmeralda was developed by Asian Vegetable Research and Development Center (Shanhua, Taiwan, as a result of crossing between the lines VC 1973A and VC 2768A. In ten trials conducted in the State of Minas Gerais, Brazil, it produced 13.5% more grains than 'Ouro Verde MG-2' (control cultivar, and its highest yield was 2,550 kg ha-1. The cultivar MGS Esmeralda is more susceptible to lodging, and its pods mature more uniformly than Ouro Verde MG-2 pods. One hundred-seed mass of 'MGS Esmeralda' ranged between 5.5 and 6.8 g. Both cultivars are susceptible to powdery mildew and cercospora leaf spot.A cultivar de mungo-verde MGS Esmeralda foi criada pelo Asian Vegetable Research and Development Center, localizado em Shanhua, Formosa. Ela é resultado do cruzamento entre as linhagens VC 1973A e VC 2768A. Em dez ensaios conduzidos em Minas Gerais, ela produziu 13,5% mais grãos do que a cultivar Ouro Verde MG-2 (testemunha, e sua produtividade mais alta foi 2.550 kg ha-1. A cultivar MGS Esmeralda é mais suscetível ao acamamento do que a Ouro Verde MG-2, mas suas vagens amadurecem mais uniformemente. A massa de 100 grãos da 'MGS Esmeralda' varia de 5,5 a 6,8 g. Ambas as cultivares são suscetíveis ao oídio e à cercosporiose.

  2. "Verdes e competitivas?": a influência da gestão ambiental no desempenho operacional de empresas brasileiras

    Directory of Open Access Journals (Sweden)

    Charbel José Chiapetta Jabbour

    2012-08-01

    Full Text Available Argumentos de que a gestão ambiental pode se relacionar positivamente com o desempenho operacional das empresas vêm se propagando pela literatura especializada desde a década de 1990. Esses argumentos ficaram conhecidos como abordagem "verde e competitiva" ou "Hipótese ganha-ganha", de que tanto o Meio Ambiente quanto as empresas se beneficiariam com a adoção de práticas de gestão ambiental. Entretanto, há uma lacuna sobre tal temática, que carece de evidências empíricas que validem ou refutem tais argumentos para a realidade brasileira. Por isso, esta pesquisa tem o objetivo de verificar empiricamente, se a gestão ambiental influencia positivamente o desempenho das operações de empresas do setor automotivo brasileiro, com foco no segmento de autopeças e componentes automotivos. Metodologicamente, realizou-se um survey com 75 empresas do setor mencionado, cujos dados foram analisados por meio de Modelagem de Equações Estruturais, uma análise multivariada de segunda-geração. Os principais resultados indicam que a adoção de práticas de gestão ambiental se relaciona positivamente com o desempenho operacional das empresas analisadas, confirmando a hipótese da pesquisa. Entretanto, a gestão ambiental explica o desempenho operacional com intensidade fraca, o que pode indicar que há outras variáveis de gestão organizacional influenciando o desempenho operacional das empresas, merecendo pesquisas futuras.Los argumentos de que la gestión ambiental se puede relacionar positivamente con el desempeño operacional de las empresas se ha propagado a través de la literatura especializada desde la década de 1990. Estos argumentos son conocidos como abordaje "verde y competitivo" o "Hipótesis gana-gana", donde tanto el medio ambiente como las empresas se beneficiarían con la adopción de prácticas de gestión ambiental. Entretanto, existe una falla sobre la temática, que carece de evidencias empíricas que validen o rebatan

  3. Economic analysis of extended cycles in the Laguna Verde nuclear power plant; Analisis economico de ciclos de extendidos en la Central Nucleoelectrica Laguna Verde

    Energy Technology Data Exchange (ETDEWEB)

    Hernandez N, H.; Hernandez M, J.L.; Francois L, J.L. [Facultad de Ingenieria, UNAM, 04510 Mexico D.F. (Mexico)]. E-mail: hermilo@correo.unam.mx

    2004-07-01

    The present work presents a preliminary analysis of economic type of extended cycles of operation of the Unit One in the Laguna Verde nuclear power plant. It is analysed an equilibrium cycle of 18 months firstly, with base to the Plan of Use of Energy of the Federal Commission of Electricity, being evaluated the cost of the energy until the end of the useful life of the plant. Later on an alternative recharge scenario is presented with base to an equilibrium cycle of 24 months, implemented to the beginning of the cycle 11, without considering transition cycles. It is added in both cycles the cost of the substitution energy, considering the unitary cost of the fuel of a dual thermoelectric power station of 350 M We and evaluating in each operation cycle, in both scenarios, the value of the substitution energy. The results show that a reduction of the days of recharge in the cycle of 24 months could make this option but favorable economically. The duration of the period of recharge rebounds in considerable grade in the cost of energy generation for concept of fuel. (Author)

  4. Checklists of Crustacea Decapoda from the Canary and Cape Verde Islands, with an assessment of Macaronesian and Cape Verde biogeographic marine ecoregions.

    Science.gov (United States)

    GonzÁlez, JosÉ A

    2018-04-23

    The complete list of Canarian marine decapods (last update by González Quiles 2003, popular book) currently comprises 374 species/subspecies, grouped in 198 genera and 82 families; whereas the Cape Verdean marine decapods (now fully listed for the first time) are represented by 343 species/subspecies with 201 genera and 80 families. Due to changing environmental conditions, in the last decades many subtropical/tropical taxa have reached the coasts of the Canary Islands. Comparing the carcinofaunal composition and their biogeographic components between the Canary and Cape Verde archipelagos would aid in: validating the appropriateness in separating both archipelagos into different ecoregions (Spalding et al. 2007), and understanding faunal movements between areas of benthic habitat. The consistency of both ecoregions is here compared and validated by assembling their decapod crustacean checklists, analysing their taxa composition, gathering their bathymetric data, and comparing their biogeographic patterns. Four main evidences (i.e. different taxa; divergent taxa composition; different composition of biogeographic patterns; different endemicity rates) support that separation, especially in coastal benthic decapods; and these parametres combined would be used as a valuable tool at comparing biotas from oceanic archipelagos. To understand/predict south-north faunal movements in a scenario of regional tropicalization, special attention is paid to species having at the Canaries their southernmost occurrence, and also to tropical African warm-affinity species.

  5. Chemistry of volcanic soils used for agriculture in Brava Island (Cape Verde)

    Science.gov (United States)

    Prudêncio, Maria Isabel; Marques, Rosa; Waerenborgh, João Carlos; José Vieira, Bruno; Dias, Maria Isabel; Rocha, Fernando

    2017-04-01

    Brava is a small volcanic island located on the south-western part of the Cape Verde archipelago. It is characterized by an irregular plateau between 300 and 976 m above sea level, which is bounded by steep coastal cliffs and cut by fluvial incision in a generally radial drainage pattern. The major volcano-stratigraphic units of the island are: Lower Unit, Middle Unit, Upper Unit, and Sediments. Although Brava is one of the islands with more frequent rainy periods in Cape Verde, the climate is essentially semi-arid, which associated with the rough topography leads to incipient soils. Detailed Fe speciation and chemical composition studies of Cape Verde soils have shown that oxidation is a major weathering mechanism, and high contents of trace elements may occur originated from imbalance of elements in the volcanic parent materials, which can be a threat to the environmental health. The soils mostly used for agriculture in Brava Island are those developed on phonolitic pyroclasts on the plateau and also on sediments. In this work the whole sample (< 2 mm) and the clay-sized fraction (< 2 µm) of these soils were analysed by Mössbauer spectroscopy and neutron activation analysis, aiming to characterize the iron speciation and to determine the concentration and distribution of 30 chemical elements in Brava soils. Mössbauer spectroscopy shows that Fe is more oxidyzed in topsoils developed on sediments (84-87%) than in soils developed on pyroclasts (71-79%). In the clay sized-fraction of all the studied soils only Fe(III) was detected. Iron oxides clearly distinguish the soils derived from the two types of parent materials, hematite being the only Fe oxide present in soils developed on sediments, while maghemite is more abundant in soils developed on pyroclasts. Iron and chromium are depleted in this fine fraction suggesting their occurrence as iron oxides and ferromagnesian minerals present in coarser particles. Among the chemical elements studied, antimony was found

  6. Surficial Geologic Map of Mesa Verde National Park, Montezuma County, Colorado

    Science.gov (United States)

    Carrara, Paul E.

    2012-01-01

    Mesa Verde National Park in southwestern Colorado was established in 1906 to preserve and protect the artifacts and dwelling sites, including the famous cliff dwellings, of the Ancestral Puebloan people who lived in the area from about A.D. 550 to A.D. 1300. In 1978, the United Nations designated the park as a World Heritage Site. The geology of the park played a key role in the lives of these ancient people. For example, the numerous (approximately 600) cliff dwellings are closely associated with the Cliff House Sandstone of Late Cretaceous age, which weathers to form deep alcoves. In addition, the ancient people farmed the thick, red loess (wind-blown dust) deposits on the mesa tops, which because of its particle size distribution has good moisture retention properties. The soil in this loess cover and the seasonal rains allowed these people to grow their crops (corn, beans, and squash) on the broad mesa tops. Today, geology is still an important concern in the Mesa Verde area because the landscape is susceptible to various forms of mass movement (landslides, debris flows, rockfalls), swelling soils, and flash floods that affect the park's archeological sites and its infrastructure (roads, septic systems, utilities, and building sites). The map, which encompasses an area of about 100 mi2 (260 km2), includes all of Mesa Verde National Park, a small part of the Ute Mountain Indian Reservation that borders the park on its southern and western sides, and some Bureau of Land Management and privately owned land to the north and east. Surficial deposits depicted on the map include: artificial fills, alluvium of small ephemeral streams, alluvium deposited by the Mancos River, residual gravel on high mesas, a combination of alluvial and colluvial deposits, fan deposits, colluvial deposits derived from the Menefee Formation, colluvial deposits derived from the Mancos Shale, rockfall deposits, debris flow deposits, earthflow deposits, translational and rotational landslide

  7. Marketing Verde como uma abordagem estratégica frente ao novo perfil de consumo

    Directory of Open Access Journals (Sweden)

    Pedro Carlos Schenini

    2015-11-01

    Full Text Available Este artigo teve como objetivo o de verificar a aplicação de conceitos do marketing verde, no comércio de produtos orgânicos, em negócios atuantes em feiras e sacolões no mercado de hortifrutigranjeiros de Florianópolis. No trabalho foram apresentadas diferentes formas de aplicação de elementos da gestão mercadológica - como imagem de negócio, comportamento do consumidor em relação à comercialização de produtos orgânicos e estratégia mercadológica – no marketing verde de produtos orgânicos. A metodologia partiu de um estudo de casos múltiplos, de natureza descritiva, realizado com comerciantes de hortifrutigranjeiros de Florianópolis- SC. A etapa de coleta de dados foi fundamentada principalmente na coleta de dados primários, através das técnicas de observação e realização de entrevista estruturada, com comerciantes de hortifrutigranjeiros em feiras e sacolões de Florianópolis-SC, escolhidos de forma aleatória. A análise fundamentou-se em análise de conteúdo. Os principais resultados foram: 1. o consumidor adepto ao marketing verde e produtos orgânicos é um indivíduo informado e formador de opinião, o que aumenta a probabilidade de sucesso, a longo prazo, de negócios adotantes de tal estratégia que apliquem de forma efetiva; 2. um aspecto crucial para o crescimento do mercado de orgânicos é o esclarecimento entre características, vantagens e benefícios entre produtos orgânicos e inorgânicos. O atual contexto aponta para uma situação em que o produto inorgânico, ou com “veneno”, é o mesmo denominado “normal”.

  8. Efecto del color y de la densidad del polietileno de fundas para cubrir el racimo sobre dimensiones, presentación y calidad poscosecha de frutos de banano y plátano

    Directory of Open Access Journals (Sweden)

    Alfonso Vargas

    2010-01-01

    Full Text Available Se evaluó el efecto del color (azul, verde y rojo y densidad (baja y alta del polietileno de fundas protectoras del racimo de Musa en 4 experimentos de banano (Musa AAA y en 1 de plátano (Musa AAB realizados en fincas comerciales del Caribe de Costa Rica. El peso del racimo y el intervalo de días del embolse a la cosecha no difirieron entre los colores (p>0,4116 ni entre las densidades (p>0,2583 de las fundas. La apariencia del racimo presentó diferencias entre colores (p0,0669 y densidades (p>0,2370 de las fundas. La longitud del fruto central de las manos antes mencionadas tampoco presentó diferencias entre colores (p>0,1446 y solo varió con la densidad en la segunda y cuarta mano del experimento 3 (p0,0899 y entre las densidades (p>0,0606 de las fundas. El porcentaje de acidez presentó diferencias (p<0,0001 entre colores solamente en el experimento 1. Los resultados indican que generalmente, bajo las condiciones agroclimáticas y de manejo propias de Caribe costarricense, no hubo efecto del color ni de la densidad del polietileno evaluados sobre los racimos y frutos de banano y plátano.

  9. Estrategia de comunicación para promover el uso de biodigestores plásticos en las fincas del Cantón Salitre

    Directory of Open Access Journals (Sweden)

    Francisco Valle Sánchez

    2015-11-01

    Full Text Available El incremento de la actividad agropecuaria como fuente de ingresos del campesino ha traído el problema de contaminación por desechos orgánicos de sus animales, de ahí la necesidad de introducir una tecnología de bajo costo, sencilla y de fácil acceso que le permita al campesino solucionar este problema que tiene sanción por parte de la autoridad ambiental. El uso de biodigestores plásticos logra este objetivo, incorporando beneficios adicionales como abono orgánico biosol, que van a mejorar su productividad en cultivos permitiéndole ahorrar en la compra de fertilizantes; otro benéfico es la producción de biogás el cual lo utiliza para la cocción de sus alimentos y el calentamiento de sus animales. Se visitó una finca en Santa Rosa Provincia de El Oro acompañados de un técnico especializado en biodigestores plásticos, representantes del M.I. Municipio de Salitre y estudiantes investigadores de la academia; se dio a conocer por parte del dueño de la finca las razones que lo llevaron a instalar un biodigestor plástico así como los beneficios obtenidos. Resultado de esta experiencia el equipo de investigación planteó como estrategia instalar un biodigestor en una finca del Cantón Salitre para que los dueños de las fincas de la zona puedan ver y comprobar los benéficos de esta tecnología, esto permitirá que el mismo campesino sea el instrumento de comunicación para que otros adopten el uso de biodigestores plásticos en toda la zona.

  10. Días sin TV: la salud del hombre

    Directory of Open Access Journals (Sweden)

    Nelson González Leal

    2004-01-01

    Full Text Available Hoy hace una tarde tranquila. Por la ventana lateral del apartamento se cuela un zumbido espasmódico y ligero, lo producen los escasos automóviles que cruzan la avenida de cuando en cuando. El edificio que habito parece un Titán dormido, trasmite una molicie áspera y duradera, pero eso no quiebra la armonía del ambiente, por el contrario, le otorga sentido al clima, que es casi tibio. Son las cinco pasado el meridiano y los árboles juguetean con una brisa ligera y torpe, que de cuando en cuando choca con los cristales de las ventanas y se dispersa en fuga. Yo me acerco al balcón y observo las construcciones vecinas. Son moles grises, aunque su color sea blanco, verde o azul, parecen grises y dormitan igual que la antigua estructura desde donde fisgoneo. Vivo en una zona residencial de clase media, construida al interés de personas dispuestas a la caminata diurna y la larga y serena conversación vespertina. A doscientos metros de donde estoy hay una plaza, muchos árboles, una estación del Metro, varios locales comerciales y una gran avenida principal. Vivo en Altamira, baluarte de la reacción sociopolítica al gobierno del ex teniente coronel del ejército Hugo Chávez Frías.

  11. Generation of the ECP database (ECP02.DAT) at the beginning of the cycle 1 of the Unit 1 of Laguna Verde

    International Nuclear Information System (INIS)

    Perusquia C, R.

    1992-10-01

    In order to carrying out a comparison among the results provided for the Program of Estimate of the ECP Critical Position and the Shutdown/Startup produced in the Cycle 1 of the Unit 1 of Laguna Verde, it was generated the base of the ECP program, following the outlines settled down in the Procedure 'Generation of ECP Database for Laguna Verde' (IT.SN/DFR 074). Next the data sheets filled when being generated the ECP02.DAT database at the beginning of the cycle are provided. In the IT.SN/DFR 079 report 'Adjustment and Preliminary Evaluation of the Predictions of Criticity of the ECP Program with Reported Data of Cycle 1 of the Unit 1 of Laguna Verde, the results of the comparison among the estimates of the ECP program using the ECP02.DAT with the real data of the Cycle 1 of the Unit 1 of Laguna Verde are presented. (Author)

  12. Generation of the ECP database (ECP01.DAT) of the cycle 1 of the Unit 1 of Laguna Verde with burnt of 1377 MWD/MT

    International Nuclear Information System (INIS)

    Perusquia C, R.

    1992-10-01

    In order to carrying out a comparison among the results provided by the Program of Estimate of the ECP Critical Position and the Shutdown/Startup produced in the Cycle 1 of the Unit 1 of Laguna Verde, it was generated the base of the ECP program, following the outlines settled down in the Procedure 'Generation of ECP Database for Laguna Verde' (IT.SN/DFR-074). Next the data sheets filled when being generated the ECP01.DAT database with a burnt of 1377 MWD/MT are provided. In the report IT.SN/DFR-079 'Adjustment and Preliminary Evaluation of the Predictions of Criticity of the ECP Program with Reported Data of the Cycle 1 of the Unit 1 of Laguna Verde', the results of the comparison among those estimates of the ECP program using the ECP01.DAT database with the real data of the Cycle 1 of the Unit 1 of Laguna Verde are presented. (Author)

  13. The Vida Verde Women's Co-Op: Brazilian Immigrants Organizing to Promote Environmental and Social Justice

    Science.gov (United States)

    Siqueira, Eduardo; Goldberg, Julia S.; Galvão, Heloisa; Chianelli, Mônica; Pirie, Alex

    2009-01-01

    We reviewed the key steps in the launch of the Vida Verde Women's Co-Op among Brazilian immigrant housecleaners in Somerville, MA. The co-op provides green housecleaning products, encourages healthy work practices, and promotes a sense of community among its members. We conducted in-depth interviews with 8 of the first co-op members, who reported a reduction in symptoms associated with the use of traditional cleaning agents and a new sense of mutual support. Critical to the co-op's success have been the supportive roles of its academic partners (Tufts University and the University of Massachusetts, Lowell), effective media outreach, and a focus on advancing social justice. Next steps include implementing a formal business plan and assessing the appropriateness of cooperatives in other industries. PMID:19890146

  14. Decontamination and disposal of Sb-124 at Palo Verde Nuclear Generating Station

    International Nuclear Information System (INIS)

    Miller, A.D.; Hillmer, T.P.; Kester, J.W.; Hensch, J.R.

    1988-01-01

    Palo Verde Nuclear Generating Station (PVNGS) is a three unit Combustion Engineering pressurized water reactor site. Each unit consists of an identical, self contained 1270 MWe reactor. This standardized design allows sharing of design improvements and equipment leading to optimum operation of the individual units. One design improvement, identified early into the operation of Unit 1, involved the elemental antimony content of the seals and bearings within the reactor coolant pumps. Normal wear of these components releases small amounts of elemental antimony. This antimony in turn deposits on in-core surfaces and activates to produce the isotopes Sb-122 and Sb-124. These isotopes emit highly energetic gamma rays which contribute significantly to the exposure and radwaste disposal charges at PVNGS. For these reasons, the Antimony Removal Program was undertaken to remove the radioactive and elemental antimony from the nuclear steam supply system at all three units. The work presented here describes the antimony decontamination and disposal

  15. Fibra da casca do coco verde como substrato agrícola

    OpenAIRE

    Carrijo Osmar Alves; Liz Ronaldo Setti de; Makishima Nozomu

    2002-01-01

    A produção comercial de mudas e o cultivo sem solo de hortaliças estão se tornando práticas comuns entre os olericultores. Vários materiais orgânicos como as turfas, resíduos de madeira, casca de pinus e de arroz parcialmente carbonizada ou não, ou materiais inorgânicos como areia, rochas vulcânicas, perlita, lã de rocha e a espuma fenólica já são utilizados como substratos, isoladamente ou em composição. A casca de coco verde que em muitas regiões causa transtorno ao serviço de limpeza públi...

  16. A novel feedwater system for the RETRAN model of the Palo Verde nuclear generating station

    International Nuclear Information System (INIS)

    Secker, P.A.; Webb, J.R.

    1988-01-01

    This paper presents a feedwater system model which supplies realistic boundary conditions to the RETRAN model of a Palo Verde Nuclear Generating Station reactor plant. The RETRAN thermal hydraulic code is used to analyze nuclear reactor system transients through a generalized thermal hydraulic volume/junction network. The feedwater system model is implemented using the control block modeling option available in the RETRAN code. The output of the control block model is coupled to the thermal hydraulic network by a fill junction. A forward Euler integration scheme is used by RETRAN for control block variables. The feedwater system model is formulated to allow implicit integration within the existing code framework. The potential need for small integration time steps is, therefore, alleviated. The model results are compared with test data

  17. Use of probabilistic risk assessment in maintenance activities at Palo Verde

    International Nuclear Information System (INIS)

    Lindquist, R.C.; Pobst, D.S.

    1993-01-01

    Probabilistic risk assessment (PRA) is an important tool in addressing various maintenance activities. At the Palo Verde nuclear generating station (PVNGS), the PRA has been used in a variety of ways to support a wide and diverse selection of maintenance-related activities. For on-line or at-power maintenance, the PRA was used to evaluate combinations of maintenance activities possible with the 12-week or floating maintenance schedule. The maintenance schedule was evaluated to identify any higher risk, undesirable combinations of equipment outages, such as the sole steam-driven auxiliary feedwater pump and the same train emergency diesel generator. Table I is a sampling of the results from the maintenance schedule evaluation in terms of increase in conditional core damage frequency (CDF) above the base- line value due to maintenance on some important key safety systems and combinations thereof. The baseline CDF is 7.4 x 10 -7 per 72 h

  18. Application of Time-Domain Electromagnetic Method in Investigating Saltwater Intrusion of Santiago Island (Cape Verde)

    Science.gov (United States)

    Gonçalves, Rui; Farzamian, Mohammad; Monteiro Santos, Fernando A.; Represas, Patrícia; Mota Gomes, A.; Lobo de Pina, A. F.; Almeida, Eugénio P.

    2017-11-01

    Santiago Island, the biggest and most populated island of the Cape Verde Republic, is characterised by limited surface waters and strong dependence on groundwater sources as the primary source of natural water supply for extensive agricultural activity and human use. However, as a consequence of the scarce precipitation and high evaporation as well as the intense overexploitation of the groundwater resources, the freshwater management is also in a delicate balance with saltwater at coastal areas. The time-domain electromagnetic (TDEM) method is used to locate the extent of saltwater intrusion in four important agricultural regions in Santiago Island; São Domingos, Santa Cruz, São Miguel, and Tarrafal. The application of this method in Santiago Island proves it to be a successful tool in imaging the fresh/saltwater interface location. Depths to the saline zones and extensions of saline water are mapped along eight TDEM profiles.

  19. O impacto da logística inversa e verde nas organizações

    OpenAIRE

    Arnaldo, Lídia Tanislá

    2018-01-01

    Dissertação/Trabalho de Projeto/Relatório de Estágio submetida como requisito parcial para obtenção do grau de Mestre em Ciências Empresariais- Ramo Gestão Logística Quando se trata do meio ambiente, é importante referir que as empresas têm responsabilidade de gerir os resíduos, de forma a serem bem tratados ou destruídos. O presente trabalho tem como foco a logística inversa, em particular a logística inversa na saúde, cujo objetivo é estudar o impacto da logística inversa e verde nas emp...

  20. Experience with reactor power cutback system at Palo Verde nuclear generating station

    International Nuclear Information System (INIS)

    Chari, D.R.; Rec, J.R.; Simoni, L.P.; Eimar, R.L.; Sowers, G.W.

    1987-01-01

    Palo Verde Nuclear Generating Station (PVNGS) is a three unit site which illustrates System 80 nuclear steam supply system (NSSS) design. The System 80 NSSS is the Combustion Engineering (C-E) standard design rated at 3817 Mwth. PVNGS Units 1 and 2 achieved commercial operation on February 13, 1986 and September 22, 1986, respectively, while Unit 3 has a forecast date for commercial operation in the third quarter of 1987. The System 80 design incorporates a reactor power cutback system (RPCS) feature which reduces plant trips caused by two common initiating events: loss of load/turbine trip (LOL) and loss of one main feedwater pump (LOMFWP). The key design objective of the RPCS is to improve overall plant availability and performance, while minimizing challenges to the plant safety system