Diagnóstico de transformadores mediante análisis de respuesta por barrido de frecuencia (SFRA)

El método de análisis de respuesta por barrido de frecuencia SFRA (SweepFrequency Response Analysis), es una técnica de diagnóstico para detectar deformaciones y desplazamientos (entre otras fallas eléctricas y mecánicas) sobre los devanados en transformadores. La detección del problema se traduce directamente en el tipo de mantenimiento que se debe realizar.

Immune Priming Triggers Cell Wall Remodeling and Increased Resistance to Halo Blight Disease in Common Bean

[EN] The cell wall (CW) is a dynamic structure extensively remodeled during plant growth and under stress conditions, however little is known about its roles during the immune system priming, especially in crops. In order to shed light on such a process, we used the Phaseolus vulgaris- Pseudomonas syringae (Pph) pathosystem and the immune priming capacity of 2,6-dichloroisonicotinic acid (INA). In the first instance we confirmed that INA-pretreated plants were more resistant to Pph, which was in line with the enhanced production of H2O2 of the primed plants after elicitation with the peptide flg22. Thereafter, CWs from plants subjected to the different treatments (non- or Pph-inoculated on non- or INA-pretreated plants) were isolated to study their composition and properties. As a result, the Pph inoculation modified the bean CW to some extent, mostly the pectic component, but the CW was as vulnerable to enzymatic hydrolysis as in the case of non-inoculated plants. By contrast, the INA priming triggered a pronounced CW remodeling, both on the cellulosic and non-cellulosic polysaccharides, and CW proteins, which resulted in a CW that was more resistant to enzymatic hydrolysis. In conclusion, the increased bean resistance against Pph produced by INA priming can be explained, at least partially, by a drastic CW remodeling.SIThis research was funded by the Spanish Ministry of Economy, Industry and Competitiveness, grant number RTC-2016-5816-2

Draft genome sequence of the type strain of the sulfur-oxidizing acidophile, Acidithiobacillus albertensis (DSM 14366)

Abstract Acidithiobacillus albertensis is an extremely acidophilic, mesophilic, obligatory autotrophic sulfur-oxidizer, with potential importance in the bioleaching of sulfidic metal ores, first described in the 1980s. Here we present the draft genome sequence of Acidithiobacillus albertensis DSM 14366T, thereby both filling a long-standing gap in the genomics of the acidithiobacilli, and providing further insight into the understanding of the biology of the non iron-oxidizing members of the Acidithiobacillus genus. The assembled genome is 3,1 Mb, and contains 47 tRNAs, tmRNA gene and 2 rRNA operons, along with 3149 protein-coding predicted genes. The Whole Genome Shotgun project was deposited in DDBJ/EMBL/GenBank under the accession MOAD00000000

Paisagem-mapa : uma cartografia artística da paisagem urbana

Dissertação (mestrado)—Universidade de Brasília, Instituto de Artes, Programa de Pós-Graduação em Arte, 2006.Hoje, diante de uma cidade cada vez mais dinâmica e mais plural e em meio ao surgimento de novas linguagens e suas sobreposições no campo ampliado da arte contemporânea, vivemos o desafio de, por meio de uma nova abordagem artística, procurar novos lugares para a obra de arte que se ocupa da paisagem urbana, ainda que estes lugares não constituam territórios fixos e estratificados para a arte. A procura de lugar para a paisagem urbana é também a procura do sentido da paisagem contemporânea. Torna-se mais presente a necessidade de se reinventar a localização da paisagem contemporânea, e cremos que, para tanto, a existência viva e plural dos espaços urbanos e suas escalas se apresentam hoje como um campo ideal para uma nova experiência estética. Essa procura deverá dar-se, necessariamente, por meio de uma nova percepção para a paisagem urbana, em campos artísticos pouco explorados e por meio de abordagens para o fazer artístico conscientes das latências históricas, sociopolíticas, culturais e urbanísticas que tensionam as cidades e seus espaços públicos. A paisagem contemporânea é o mapa do múltiplo da paisagem urbana, e vamos propor que se trabalhe na construção de poéticas que lancem um olhar crítico e transformador sobre esta realidade urbana. ______________________________________________________________________________________________________ ABSTRACTNowadays, we are facing more and more dynamic and plural cities, in the midst of the arising of new languages and their superposition in the amplified field of contemporary art. By a new artistic approach, we live the challenge of searching for new places to the work of art concerned to the urban landscape, although these places do not constitute fixed and stratified territories for art. The search for a place to the urban landscape is also the search for the sense of contemporary landscape. It becomes urgent the need to recreate a place to contemporary landscape. In order to do that, we think that the plural existence of urban spaces and their scales are, nowadays, an ideal field to a new esthetic experience. This search will occur, necessarily, by a new perception about the urban landscape, in artistic fields little explored, and by an approach to the work in art which is aware of the historical, socio-political, cultural and urbane tension in the city and its public spaces. The contemporary landscape is the map of the multiplicity of the urban landscape, and we propose to work in the construction of poetics that looks at this urban reality with a critical and transforming eye

Biología molecular en oncología: lo que un clínico debiera saber

El cáncer es una patología con prevalencia en alza y cuyo origen se encuentra en el DNA, más específicamente en las alteraciones que lo afectan, y que finalmente se traducen en la desregulación del ciclo celular y de los mecanismos celulares reparadores del DNA. La desregulación del ciclo celular se traduce finalmente en la formación de tumores, que pueden invadir tejidos u órganos distantes, provocando la muerte del paciente. Conocer y entender las alteraciones y/o daños que puede sufrir el DNA permite comprender el proceso de carcinogénesis a escala molecular, pero también a escala humana. Esta revisión pretende actualizar y/o clarificar algunos conceptos moleculares básicos del cáncer, cómo éstos pueden estudiarse en un laboratorio de biología molecular y cómo pueden ayudar a mejorar la práctica clínica con un paciente oncológico

Insulin is secreted upon glucose stimulation by both gastrointestinal enteroendocrine K-cells and L-cells engineered with the preproinsulin gene

Transgenic mice carrying the human insulin gene driven by the K-cell glucose-dependent insulinotropic peptide (GIP) promoter secrete insulin and display normal glucose tolerance tests after their pancreatic β-cells have been destroyed. Establishing the existence of other types of cells that can process and secrete transgenic insulin would help the development of new gene therapy strategies to treat patients with diabetes mellitus. It is noted that in addition to GIP secreting K-cells, the glucagon-like peptide 1 (GLP-1) generating L-cells share/ many similarities to pancreatic β-cells, including the peptidases required for proinsulin processing, hormone storage and a glucosestimulated hormone secretion mechanism. In the present study, we demonstrate that not only K-cells, but also L-cells engineered with the human preproinsulin gene are able to synthesize, store and, upon glucose stimulation, release mature insulin. When the mouse enteroendocrine STC-1 cell line was transfected with t

La cuantificación impacto económico regional de las universidades : una aplicación al caso de la Comunidad de Madrid

Resumen tomado de la publicaciónSe plantea el objetivo en primer lugar de estudiar las distintas funciones que desarrollan los centros universitarios sobre su región, así cómo los problemas que plantea su cuantificación. A continuación, tras realizar un repaso sobre las conclusiones obtenidas por estudios recientes, se estiman las contribuciones de los centros públicos y privados a la renta de la Comunidad de Madrid utilizando el enfoque del modelo de crecimiento regional de tipo base-exportación.NavarraUniversidad de Navarra. Biblioteca; 31080 Pamplona; +34948425600; +3494817731080; [email protected]