Resultados de búsqueda - "time"

  1. 941
  2. 942

    Comportamiento Tribológico y Microestructural en Recubrimientos Aplicados por GTAW y HVOF (Proceso Térmico de Espreado) y Usado en Recuperación de Aceros Grado Herramienta AISI/SAE... por Chávez, Carlos Alberto Guevara, Dávila, Jorge Leobardo Acevedo, Hernández Gutiérrez, Pedro, Ruiz Mondragón, José Jorge, Zambrano Robledo, Patricia del Carmen

    Publicado 2016
    “…For those materials that are easy to crack and modified its composition due hard phases formation and high carbon content, because of the process conditions which combine a relative low flame temperature with a low exposition time. The microstructure and the covering physic properties are determined by the physical and chemical properties of the impregnated particles in the substrate that depends as well of a big amount of parameters as the pistol design, oxygen/fuel relation, injection method, particle size and shape, among others This research studies the influence of the processing parameters on the mechanical and microstructural properties of a Diamalloy 1008 (Fe-Cr-Mo alloy) coating applied with high velocity oxy-fuel (HVOF) and five different electrodes types were applied by Gas tungsten Arc Welding (GTAW) on cold work tool steel mold specimens. …”
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  3. 943

    Revisión estratigráfica del jurásico en el Cerro la Cruz, Aramberri, Nuevo León. por Casas Peña, Juan Moisés

    Publicado 2016
    “…The main lithology in the study area is conformed by sedimentary rocks (continental and marine terrigenous and carbonate rocks) during Mesozoic time. These rocks rest unconformatly over a Paleozoic-Precambrian basement. …”
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  4. 944

    Estudio microfacial, mineralógico, geoquímico e isotópico de la formación San Felipe (Cretácico Superior), Noreste de México. por Tienda Garza, Jaime Antonio

    Publicado 2018
    “…ABSTRACT The San Felipe Formation (total thickness ~130 m, Santonian - Campanian) is a lithological unit, included in the stratigraphic column of the Sierra Madre Oriental, Northeastern Mexico, consisting of packstone-wackestone varying to mudstone carbonate from light to dark gray (thickness 20-100 cm), constituted by calcite, quartz and illite with characteristical Upper Cretaceous planktonic foraminifera, radiolarians and calcispheres, which was paulatined transformed in shale (thickness <5 cm) with the stratigraphic rise, constituted by calcite, quartz, albite, and illite. At the same time of this sedimentation process occurred, felsic volcanic ash was incorporated and consolidated as lapilli tuff layers (n <14, thickness <30 cm). …”
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  5. 945

    Incorporación de extracto de aloe vera en nanopartículas para estimulación de osteoblastos. por Sierra García, Gerardo Daniel

    Publicado 2018
    “…The expression of type 1 collagen was assessed by staining and polymerase chain reaction (PCR) in real time. Batches of polymeric nanoparticles incorporating protein were prepared and characterized by size and morphology, as well as percentage of encapsulation through the implementation of an analytical spectroscopic technique and by scanning electron microscopy. …”
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  6. 946

    Association of Patient Profile with Glycemic Control and Hypoglycemia with Insulin Glargine 300 U/mL in Type 2 Diabetes: A Post Hoc Patient-Level Meta-Analysis por Twigg, Stephen M., Escalada, Javier, Stella, Peter, Merino Trigo, Ana, Lavalle González, Fernando Javier, Cariou, Bertrand, Meneghini, Luigi F.

    Publicado 2018
    “…While heterogeneity of treatment effect between diabetes duration subgroups was seen for the risk of C 1 confirmed (B 3.9 mmol/L [B 70 mg/dL]) or severe hypoglycemic event at any time (24 h), treatment effect consistently favored Gla-300; no evidence of heterogeneity was observed for the other subgroups. …”
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  7. 947

    La obesidad como potencializador de la enfermedad periodontal utilizando como base los niveles de expresiones de micro RNA. por Rodríguez Guerra, Héctor Iram

    Publicado 2018
    “…The expression patterns of miRNAs were assessed with real-time PCR (RT-PCR). Data bases were used to identify the potential targets of relevance of miRNAs expressed. …”
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  8. 948

    Bionomía del mosquito Aedes (Stegomyia) aegypti Ll.) En iglesias y cementerio de la ciudad de Mérida, Yucatán, México, y la identificación de arbovirus. por Baak Baak, Carlos Marcial

    Publicado 2018
    “…Field work was undertaken from September 2015 to October 2016 and sampling was conducted four times per month. Resting mosquitoes were collected by using backpack-mounted aspirators. …”
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  9. 949

    Comparación de un método inmediato para detectar bacterias durante el tratamiento de endodoncia versus el método de cultivo tradicional. por Bulnes García, Marisol Elizabeth

    Publicado 2018
    “…The reading of the ATP based on bioluminescence is easy to perform and the results can be obtained in a clinically time frame of 5 minutes. Objective: To evaluate the detection sensitivity of bacterial ATP with the use of the MVP Icon Luminometer during the endodontic treatment compared to the traditional culture method, of root canal samples of patients undergoing endodontic treatments. …”
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  10. 950

    Distribución de insectos necrófagos bajo un gradiente altitudinal en el monumento nacional “Cerro de la Silla”, Guadalupe, Nuevo León. por Esquivel Alfaro, Teresa Imelda

    Publicado 2018
    “…The species which arose with greater frequency and abundance were Lucilia illustris (Meigen), Sarcophaga haemorrhoidalis (Fallen), Musca domestica (Linaeus), Calliphora vicinia (Robineau - Desvoidy), Chrysomya rufifacies (Maquart), Fannia scalaris (Fabricius), Chrysomya megacephala (Fabricius), Piophila casei (Linaeus), Megaselia scalaris (Loew) and Phaenicia sericata (Meigen), all these species were associated in its density and distribution with factors as the locality or altitude, time of year, minimum temperature, maximum temperature, average temperature, pressure atmospheric, relative humidity and wind speed. …”
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  11. 951

    Farmacogenética de la quimioterapia de los tumores gastrointestinales. por Castro Rojas, Carlos Andrés

    Publicado 2017
    “…This is the first study related to pharmacogenetics of the chemotherapy of gastrointestinal tumors in mexican population and for the first time it is proposed the 3RG diplotype as an independent marker for response failure to fluoropyrimidines.…”
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  12. 952

    Persistencia de marcadores para Bacteroidales como microorganismos indicadores de trazabilidad en tomate y melón contaminados artificialmente por Ordaz Cervera, Gilberto

    Publicado 2017
    “…ABSTRACT Fecal Indicator Bacteria (FIB) requires time and selective culture media to grow and do not allow microbial source tracking (MST). …”
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  13. 953

    Zonificación y detección de riesgos geológicos en el flanco sur del Cerro de las Mitras por Viveros Ramírez, Daniel

    Publicado 2019
    “…This has caused , since the decade of the 70’s, an uncontrolled growth of the urban spot (patch), leaving place to the civil population to settle in mountainous areas. Over time, hillside areas begin to change their morphology due to different geological and hydrometeorological processes, that affect the existing materials (rock and soil), which are accommodating in order to find physical relaxation, that alows them to balance. …”
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  14. 954

    Evaluación de la aplicación de insecticidas comerciales residuales, para el control de Aedes aegypti en Yucatán por Dzib Florez, Sergio Adrián

    Publicado 2019
    “…Aegypti, with a rationalization in the use of insecticides and better control by killing mosquitoes for a longer time just by spraying certain areas of the houses. …”
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  15. 955

    Metabolomic and biodirected phytochemical study of Hechtia glomerata, evaluation of its antibacterial and cytotoxic activity, and determination of the mechanism of action of one ac... por Stefani, Tommaso

    Publicado 2020
    “…Purpose of the study: The pharmaceutical industry has left the active research and development of new antibiotics, and the lack of new molecules caused the antibacterial resistance to become an even more threatening issue. At the same time cancer resistance is also thriving, making old chemotherapeutic drugs useless. …”
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  16. 956

    Evaluación del efecto de los fosfolípidos dietarios sobre la respuesta inmune de camarones Litopenaeus stylirostris infectados con Vibrio parahaemolyticus por Cruz Hernández, Sandra Edith de la

    Publicado 2008
    “…Hemolymph samples were taken at -24h, 0h, +30min, +90min, +180min and +260 min with respect to the inoculation time, in order to determine the hemocytes count, plasmatic concentrations of beta-glucan-binding-protein (BGBP), cholesterol, triglycerids and total lipids, as well as phenol-oxidase activity (FO), total phenol-oxidase activity and inactive proFO in plasma or hemocytes. …”
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  17. 957

    Análisis estructural y estudio paleomagnético en el área potrero el colorado, porción occidental de la sierra la fragua, Coahuila, México por González Naranjo, Gildardo Alonso

    Publicado 2006
    “…It was recognized extension of this rocks with direction NNE-SSW and NE-SW on the Jurassic time, where the SMF had acted basically accommodating extension on the Earth crust. …”
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  18. 958

    Síntesis de cementantes hidráulicos alternativos mediante la geopolimerización de escorias de fundición de concentrados de pb–zn por Millán Corrales, Guadalupe

    Publicado 2015
    “…The obtained products of the reaction were C-S-H, and two insolubles geopolymerics gels N-AS-H and C-A-S-H but with good mechanical properties of up to 60 MPa in RC with 120 days of cured. The curing time and the module silicate were the most important factors on the development of resistance. …”
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  19. 959

    Revisión estratigráfica del jurásico en el Cerro la Cruz, Aramberri, Nuevo León. por Casas Peña, Juan Moisés

    Publicado 2016
    “…The main lithology in the study area is conformed by sedimentary rocks (continental and marine terrigenous and carbonate rocks) during Mesozoic time. These rocks rest unconformatly over a Paleozoic-Precambrian basement. …”
    Enlace del recurso
    Tesis
  20. 960

    Estudio microfacial, mineralógico, geoquímico e isotópico de la formación San Felipe (Cretácico Superior), Noreste de México. por Tienda Garza, Jaime Antonio

    Publicado 2018
    “…ABSTRACT The San Felipe Formation (total thickness ~130 m, Santonian - Campanian) is a lithological unit, included in the stratigraphic column of the Sierra Madre Oriental, Northeastern Mexico, consisting of packstone-wackestone varying to mudstone carbonate from light to dark gray (thickness 20-100 cm), constituted by calcite, quartz and illite with characteristical Upper Cretaceous planktonic foraminifera, radiolarians and calcispheres, which was paulatined transformed in shale (thickness <5 cm) with the stratigraphic rise, constituted by calcite, quartz, albite, and illite. At the same time of this sedimentation process occurred, felsic volcanic ash was incorporated and consolidated as lapilli tuff layers (n <14, thickness <30 cm). …”
    Enlace del recurso
    Tesis

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