64,396 research outputs found
Intramolecular [2+2] photocycloaddition-fragmentation: Facile entry to a novel tricyclic 5-6-7 ring system
No full textHerramienta de inserción de errores en protocolo LIN
Get PDFUna forma de probar la robustez de los drivers de comunicación LIN es insertando errores en la red de LIN para ver el comportamiento del driver bajo prueba, es decir, que tenga un manejo de errores de acuerdo a alguna petición del cliente o requisito, por ejemplo, que no haya resets en el software o errores similares. Actualmente hay algunas herramientas que introducen errores en el bus de LIN como el J8115A LIN Tester de Agilent (inserta errores en LIN) o el hardware de prueba VH1150 de Vector. Estas herramientas son muy completas, pero su interfaz de control es compleja, además de que son caras y necesitan licencias de software. Para la automatización de secuencias de prueba es necesario tener un profundo conocimiento de la interfaz de tal software. Para desarrollar un sistema LIN no se requieren herramientas o equipos especializados, solo hardware que soporte el protocolo LIN, mientras que, por otro lado, para probar la implementación LIN se requiere especialización. Es por esto que algunas de las pruebas no pueden ser automatizadas, lo que lleva a hacer más largos los tiempos de prueba y puede provocar falsos resultados positivos o negativos debido a errores humanos. La principal meta de este proyecto es crear un procedimiento capaz de insertar errores en el protocolo LIN a bajo costo, fácil de usar y preciso. Este método permitirá crear casos de prueba para robustecer drivers de LIN, ya que no todos los microcontroladores tienen LIN nativo, además ayudará a encontrar deficiencias en los driver de LIN y corregirlos en etapas tempranas del proceso de desarrollo, con lo que se disminuirán los costos de corrección del error y aumentará la calidad y fiabilidad de los componentes de LIN.Consejo Nacional de Ciencia y TecnologíaContinental Guadalajara Services S.A. de C.
Traumatic identity and aura in David Lodge's "Author, author"
Get PDFEste artículo analiza la novela Author, Author (2004) de David Lodge como ejemplo de bioficción neo-victoriana centrada en una celebridad, en este caso concreto, Henry James. El género forma parte del renacimiento Victoriano actual que afecta a los estudios culturales en su conjunto. Mi argumento central es que la novela de Lodge constituye una respuesta a las ansiedades culturales actuales, en particular a las que se refieren a la crisis identitaria y autoría literaria, así como a la pérdida del aura artística de Walter Benjamin, sublimándolas a través de los traumas de finales del siglo XIX. La elección de James, como demuestra el artículo, no es casual. Es el último representante de un mundo perdido en el que el aura aún tenía un espacio; el ser humano en crisis y traumatizado porque no encaja en un status quo nuevo.This paper delves into David Lodge’s Author, Author (2004) as an example of neo-Victorian celebrity biofiction, more concretely on Henry James. The genre belongs to the wave of Victorian revival in current literature which also affects cultural studies in general. My main contention is that Lodge’s novel responds to current cultural anxieties, particularly the crisis of identity and authorship and the end of Walter Benjamin’s concept of aura, by sublimating them into late-nineteenth-century traumata. The choice of James is, the article argues, not casual. He represents the redeeming figure of a lost auratic world; the human in crisis, traumatized because he does not fit in the new status quo
Identifying author-inventors from Spain: methods and a first insight into results
No full textThe aim of this paper is to describe a matching and disambiguation methodology for the identification of author-inventors located in the same country. It aims to maximize precision and recall rates by taking into account national name writing customs in the name matching stage and by including a recursive validation step in the person disambiguation stage. An application to the identification of Spanish author-inventors is described in detail, where all SCOPUS 2003-2008 publications of Spanish authors are matched to all 1978-2009 EPO applications with Spanish inventors. Using this data, we identify 4,194 Spanish author-inventors. A first look at their patenting and publication patterns reveal that Spanish author-inventors make quite a significant contribution to the overall country’s scientific and technological production in the time periods considered: 27% of all EPO patent applications invented in Spain and 15% of all SCOPUS scientific articles authored in Spain, with important differences across fields and excluding journals in non-technologically relevant fields.Peer reviewe
Identification and isolation of ES cells and BM- and FL-derived Lin-ckit+Sca-1+ cells.
No full text<p>(<b>A</b>) Lin-ckit+Sca-1+ cells were generated from ES cells differentiated under Static and Dynamic culture conditions (Synthecon and Spinner flask) for 7 days and (<b>B</b>) from BM and FL. Mouse embryonic stem cells were differentiated under Static and Dynamic culture conditions (Spinner flask and Synthecon) for 7 days. Cell suspensions from day7 EBs were stained with ckit and Sca-1 antibodies to isolate the Lin-ckit+Sca-1+ population. As explained in Materials and Methods, the Lineage negative cocktail was not included for sorting because we did not observe lineage positive cells at day 7 of differentiation for any ESC culture condition (left panel). Similarly, lineage negative cells from BM and FL cell suspensions were stained with ckit and Sca-1 antibodies to isolate by cell sorting the ckit+Sca-1+ Lineage negative population (LKS). Staining with relevant isotype controls was included in each sample to determine the right ckit+Sca-1+ population.</p
¿Qué es el plagio?
No full textEl plagio es tomar un fragmento de una obra artística o intelectual ajena y hacerlo pasar como propio, sin la debida acreditación del autor.Plagiarism is taking a fragment of another's artistic or intellectual work and passing it off as one's own, without due accreditation of the author
Microbial larvicide application by a large-scale, community-based program reduces malaria infection prevalence in urban Dar es Salaam, Tanzania.
Get PDFBACKGROUND\ud
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Malaria control in Africa is most tractable in urban settlements yet most research has focused on rural settings. Elimination of malaria transmission from urban areas may require larval control strategies that complement adult mosquito control using insecticide-treated nets or houses, particularly where vectors feed outdoors.\ud
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METHODS AND FINDINGS\ud
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Microbial larvicide (Bacillus thuringiensis var. israelensis (Bti)) was applied weekly through programmatic, non-randomized community-based, but vertically managed, delivery systems in urban Dar es Salaam, Tanzania. Continuous, randomized cluster sampling of malaria infection prevalence and non-random programmatic surveillance of entomological inoculation rate (EIR) respectively constituted the primary and secondary outcomes surveyed within a population of approximately 612,000 residents in 15 fully urban wards covering 55 km(2). Bti application for one year in 3 of those wards (17 km(2) with 128,000 residents) reduced crude annual transmission estimates (Relative EIR [95% Confidence Interval] = 0.683 [0.491-0.952], P = 0.024) but program effectiveness peaked between July and September (Relative EIR [CI] = 0.354 [0.193 to 0.650], P = 0.001) when 45% (9/20) of directly observed transmission events occurred. Larviciding reduced malaria infection risk among children < or =5 years of age (OR [CI] = 0.284 [0.101 to 0.801], P = 0.017) and provided protection at least as good as personal use of an insecticide treated net (OR [CI] = 0.764 [0.614-0.951], P = 0.016).\ud
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CONCLUSIONS\ud
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In this context, larviciding reduced malaria prevalence and complemented existing protection provided by insecticide-treated nets. Larviciding may represent a useful option for integrated vector management in Africa, particularly in its rapidly growing urban centres
Integrating damping and non-linearities in a vibration design process
Get PDFClassical vibration design uses modes and transfer functions generated with the superposition principle to allow the verification of design objectives. If redesign is needed, one optimizes mass and stiffness in order to modify the transfer until the specification is met. Integrating damping and non-linearities in the optimization of detailed industrial models is however still considered a major difficulty, even though the physical mechanisms are well known. Approaches to handle viscoelastic damping and time domain modal damping are thus discussed. Distributed non-linearities, such as contact and friction, are becoming accessible to transient simulation, but lead to responses where modes are no longer defined. It is however illustrated that operational deflection shapes, associated with a singular value decomposition of the response, give similar information. Finally, a fundamental aspect of non-linear vibration simulation is the volume of output and the associated numerical cost. Model reduction is a key ingredient of practical approaches and a perspective on related issues is given
Ciano-lin: nueva variedad de cártamo linoléica
No full textA new cultivar of safflower (Carthamus tinctorius L.), was developed for safflower-producing areas in Mexico and was named CIANO-LIN. This variety was obtained in the Norman E. Borlaug Experimental Field (CENEB), of the National Research Institute for Forestry, Agriculture and Livestock (INIFAP) and registered with the number CAR-011-290909 on the national register of plant varieties. CIANO-LIN is a linoleic variety highly tolerant to false mildew (Ramularia carthami Z.) with yields from 3 to 4 t ha-1 and good quality of linoleic-type oil for domestic and export market. CIANO-LIN exceeds the control Bacum' 92, in yield, disease tolerance, quality and quantity of linoleic oil type. CIANO-LIN can be planted during Autumn-Winter in the states of Tamaulipas, Jalisco, Baja California, Baja California Sur, Sinaloa and Sonora.Una nueva variedad de cártamo (Carthamus tinctorius L.), fue desarrollada para las áreas productoras de cártamo en México, la cual se le dio el nombre de CIANO-LIN. Esta variedad fue obtenida en el Campo Experimental Norman E. Borlaug (CENEB), del Instituto Nacional de Investigaciones Forestales Agrícolas y Pecuarias (INIFAP) y registrada con el níºmero CAR-011-290909 en el registro nacional de variedades de plantas. CIANO-LIN es una variedad linoléica altamente tolerante a la falsa cenicilla (Ramularia carthami Z.), con rendimientos de 3 a 4 t ha-1 y buena calidad de aceite de tipo linoleico para el mercado nacional y de exportación. CIANO-LIN supera al testigo Bacum'92, tanto en rendimiento, tolerancia a enfermedades, calidad y cantidad de aceite de tipo linoléico. CIANO-LIN se puede sembrar durante el ciclo otoño-invierno en los estados de Tamaulipas, Jalisco, Baja California, Baja California Sur, Sinaloa y Sonora
Konzeptstudie und Realisierung eines LED-Rücklichtmoduls mit integrierter Ansteuerung und LIN-Busschnittstelle
No full textAufgrund des wachsenden Elektronikanteils werden in der Automobilindustrie bereits Bussysteme wie CAN, LIN, FlexRay und MOST aus Gewichts- und Verkabelungsgründen sowie zur Einsparung von Kosten eingesetzt. Auch beim Motorrad steigt die Anzahl der elektronischen Komponenten, so dass auch hier die Bussysteme CAN und LIN eingesetzt werden. Aufgabe dieser Diplomarbeit ist es, das bestehende LED-Rücklichtmodul der BMW Motorradmodelle K 1600 GT und K 1600 GTL als Konzeptstudie in das vorhandene LIN-Bussystem einzubinden. Weiterhin ist es das Ziel, die Ansteuerung der LEDs für Rücklicht, Bremslicht, Blinker und Kennzeichenleuchte durch die Verwendung eines Mikrocontrollers mit Leistungstreibern in das Modul zu integrieren. Zur Erstellung der LIN-Variante des LED-Rücklichtmoduls gehören ebenso das Leiterplattenlayout sowie die Softwareentwicklung für die Stromregelung der LEDs und der LIN-Kommunikation zur Aufgabe. Abschließend gilt es die Vorteile der Konzeptstudie gegenüber der bisherigen Variante aufzuzeigen
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