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Search Results: 1 - 10 of 51361 matches for " Carlos Santisteban "
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Microbial Diversity of Bovine Mastitic Milk as Described by Pyrosequencing of Metagenomic 16s rDNA
Georgios Oikonomou, Vinicius Silva Machado, Carlos Santisteban, Ynte Hein Schukken, Rodrigo Carvalho Bicalho
PLOS ONE , 2012, DOI: 10.1371/journal.pone.0047671
Abstract: Dairy cow mastitis is an important disease in the dairy industry. Different microbial species have been identified as causative agents in mastitis, and are traditionally diagnosed by bacterial culture. The objective of this study was to use metagenomic pyrosequencing of bacterial 16S rRNA genes to investigate bacterial DNA diversity in milk samples of mastitic and healthy dairy cows and compare the results with those obtained by classical bacterial culture. One hundred and thirty-six milk samples were collected from cows showing signs of mastitis and used for microbiological culture. Additionally, 20 milk samples were collected from healthy quarters. Bacterial DNA was isolated from the same milk samples and the 16S rRNA genes were individually amplified and pyrosequenced. Discriminant analysis showed that the groups of samples that were most clearly different from the rest and thus easily discriminated were the normal milk samples from healthy cows and those characterised by culture as Trueperella pyogenes and Streptococcus spp. The mastitis pathogens identified by culture were generally among the most frequent organisms detected by pyrosequencing, and in some cases (Escherichia coli, Klebsiella spp. and Streptococcus uberis mastitis) the single most prevalent microorganism. Trueperella pyogenes sequences were the second most prevalent sequences in mastitis cases diagnosed as Trueperella pyogenes by culture, Streptococcus dysgalactiae sequences were the second most prevalent sequences in mastitis cases diagnosed as Streptococcus dysgalactiae by culture, and Staphyloccocus aureus sequences were the third most prevalent in mastitis cases diagnosed as Staphylococcus aureus by culture. In samples that were aerobic culture negative, pyrosequencing identified DNA of bacteria that are known to cause mastitis, DNA of bacteria that are known pathogens but have so far not been associated with mastitis, and DNA of bacteria that are currently not known to be pathogens. A possible role of anaerobic pathogens in bovine mastitis is also suggested.
Comparative Study of Conventional, Fuzzy Logic and Neural PID Speed Controllers with Torque Ripple Minimization for an Axial Magnetic Flux Switched Reluctance Motor  [PDF]
Eric S. Sanches, José A. Santisteban
Engineering (ENG) , 2014, DOI: 10.4236/eng.2014.611065
Abstract: Three speed controllers for an axial magnetic flux switched reluctance motor with only one stator, are described and experimentally tested. As it is known, when current pulses are imposed in their windings, high ripple torque is obtained. In order to reduce this ripple, a control strategy with modified current shapes is proposed. A workbench consisting of a machine prototype and the control system based on a microcontroller was built. These controllers were: a conventional PID, a fuzzy logic PID and a neural PID type. From experimental results, the effective reduction of the torque ripple was confirmed and the performance of the controllers was compared.
Atención integral a las mujeres de edad mediana
Stalina Santisteban,Alba;
Revista Cubana de Obstetricia y Ginecolog?-a , 2011,
Abstract: the objectives of present research were: to identify in the health area the sociocultural features of the climacteric women and to relate them to the symptomatology of this period, to determine the hidden morbidity of chronic diseases and the gynecological sphere in middle-age women to relate it to climacterium symptomatology, to apply the initial support treatment (ist) and to assess its responses. a descriptive and prospective study was conducted and to apply it in the climacterium and menopause consultation of "cerro" municipality during 6 years for care of middle-age woman and a form as medical record to collect data of the whole clinical physical examination; the age of menopause onset is specified, the socioeconomic level of women seen and a first initial support treatment (ist) is prescribed to educate and to control the symptoms suffered by patients. with this treatment alternative good results were achieved and only a low percentage needs to use replacement hormonotherapy (rht). after, the complementary studies are started according to the initial clinical method to specify exactly the hidden morbidity of middle-age women.
Poesía y prosa de Eguren: cinco lecturas en profundidad
Ricardo Silva-Santisteban
Lexis , 1995,
Abstract: El artículo no presenta resumen.
The excellence of the metaheurístics and the problems of optimization. La excelencia de las metaheurísticas y los problemas de optimización.
Joaquín Santisteban Urquiza
Revista Cubana de Ciencias Informáticas , 2012,
Abstract: Many are the problems that are taken to investigation centers so that they are resolved. A class of these problems is the denominated problems of optimization. The peak of these problems began from the second world war when the resources began to be scare. The problems of optimization are of vital importance because they are presentin all the spheres in the human being's life. Whenever a person is traced objectives in the life, needs of actions to be able to carry out them and these actions should complete necessary restrictions so that they can be adapted to the outlined objective. With the result that whenever we trace ourselves a practical objective you can model through models of optimization. The strategies metaheurístics are algorithms designed for the resolution of these problems and they acquire importance when an exact method of resolution doesn't exist or this it requires a lot of time of calculation or memory, When one doesn't need the good solution, When the data are few reliable or when the pattern is a simplification of the reality, When limitations of time, space forces the employment of methods of fast answer, Like intermediate step in the application of another algorithm. Another important advantage of these strategies is also that they allow a bigger flexibility for the handling of the problem with relationship to the exact methods. Muchos son los problemas que son llevados a centros de investigación para que sean resueltos. Una clase de estos problemas son los denominados problemas de optimización. El auge de estos problemas comenzó desde la segunda guerra mundial cuando los recursos comenzaron a escasear. Los problemas de optimización son de vital importancia porque están presentes en todas las esferas en la vida del ser humano. Siempre que una persona se trace objetivos en la vida, necesita de acciones para poder realizarlos y estas acciones deben cumplir restricciones necesarias para obtener el objetivo planteado. De ahí que siempre que nos tracemos un objetivo práctico se puede modelar a través de modelos de optimización. Las estrategias metaheurísticas son algoritmos dise ados para la resolución de estos problemas y adquieren importancia cuando no existe un método exacto de resolución o este requiere mucho tiempo de cálculo o memoria, cuando no se necesita la solución óptima, cuando los datos son pocos fiables o cuando el modelo es una simplificación de la realidad, cuando limitaciones de tiempo, espacio obliguen el empleo de métodos de rápida respuesta, como paso intermedio en la aplicación de otro algoritmo. Además otra impo
Atención integral a las mujeres de edad mediana Integral care of middle-age women
Alba Stalina Santisteban
Revista Cubana de Obstetricia y Ginecolog?-a , 2011,
Abstract: Los objetivos de esta investigación fueron: identificar en el área de salud las características socio-culturales de las mujeres climatéricas y relacionarlos con la sintomatología de este periodo. Determinar la morbilidad oculta de enfermedades crónicas y de la esfera ginecológica en las mujeres de edad mediana para relacionarlo con la sintomatología del climaterio. Aplicar el tratamiento de sostén inicial (TSI) y evaluar sus respuestas. Se realizó un estudio prospectivo, descriptivo y aplicado en la consulta de Climaterio y Menopausia del municipio Cerro durante 6 a os para la atención de la mujer en edad mediana, se confeccionó una planilla como historia clínica para la recogida de datos del examen físico clínico, completo; se precisa la edad en que aparece la menopausia, el nivel socioeconómico de las mujeres atendidas y se indica un primer tratamiento de sostén inicial (TSI) para educar y controlar los síntomas que aquejan las pacientes. Se logran buenos resultados con esta alternativa de tratamiento y solo un bajo % necesitan utilizar el tratamiento hormonal de reemplazo (THR). Se inician después los estudios complementarios de acuerdo al método clínico inicial para precisar la morbilidad oculta de las mujeres de la edad mediana. The objectives of present research were: to identify in the health area the sociocultural features of the climacteric women and to relate them to the symptomatology of this period, to determine the hidden morbidity of chronic diseases and the gynecological sphere in middle-age women to relate it to climacterium symptomatology, to apply the initial support treatment (IST) and to assess its responses. A descriptive and prospective study was conducted and to apply it in the Climacterium and Menopause consultation of "Cerro" municipality during 6 years for care of middle-age woman and a form as medical record to collect data of the whole clinical physical examination; the age of menopause onset is specified, the socioeconomic level of women seen and a first initial support treatment (IST) is prescribed to educate and to control the symptoms suffered by patients. With this treatment alternative good results were achieved and only a low percentage needs to use replacement hormonotherapy (RHT). After, the complementary studies are started according to the initial clinical method to specify exactly the hidden morbidity of middle-age women.
Garcilaso de la Vega traductor
Ricardo Silva-Santisteban
Mutatis Mutandis : Revista Latinoamericana de Traducción , 2010,
Abstract: El Inca Garcilaso es presentado en este artículo como actor de la historia de la traducción peruana en el siglo XVI. El trabajo de Garcilaso está marcado por una búsqueda de la armonía, partiendo del bilingüismo quechúa-espa ol del que hace gala y de toda su formación humamística, además de conocimientos de otras lenguas, entre ellas el italiano y el latín. El Inca ejerce la traducción, en un comienzo por el placer de traducir la belleza que leía en otras lenguas, pero que luego se convierte en un trabajo sistemático y reflexivo. Traduce versos con la fluidez de un poeta, pero además analiza y comenta muchas otras traducciones de palabras quechuas. El Inca es, pues, presentado en este artículo como escritor, traductor y crítico que participa con su trabajo en la construcción de una Edad de Oro de las letras peruanas.
El martirio de San Pelayo: una obra desconocida del pintor Martín Amigo en Belendiz (Bizkaia)
Zorrozua Santisteban, Julen
Archivo Espa?ol de Arte , 2004,
Abstract: Dentro del cada vez más difundido y revalorizado panorama de la pintura barroca desarrollada en el País Vasco nos reencontramos aquí con una de sus figuras se eras durante el siglo XVII. Concretamente hablamos de Martín Amigo, pintor de origen alavés y vecino de Bilbao durante gran parte de su vida, a cuya personalidad y obra artística nos acercó en su momento el profesor Barrio Loza. Volvemos a él con ocasión de presentar ahora un cuadro inédito conservado en la ermita de San Pelayo de Belendiz en la localidad vizcaína de Arratzu a cuya parroquia de Santo Tomás Apóstol sirve aquélla como aneja. Se trata de un óleo sobre lienzo que reproduce el martirio del santo titular, de aproximadamente 1,50 x 2,20 metros y regular estado de conservación, y que está firmado ( Amigo ft. ) y fechado (1680) en su ángulo inferior derecho. Además de acercamos al cuadro desde diferentes ángulos, su análisis nos servirá…
La participation des femmes dans le conflit interne armé au Pérou durant la période 1980-2000 The Participation of Women in Peru’s Internal Armed Conflict during the 1980-2000 Period La participación de las mujeres en el conflicto armado peruano durante 1980-2000
Rocío Silva?Santisteban
Droit et Cultures , 2012,
Abstract: Entre 1980 et 2000, le Pérou a vécu un conflit interne armé qui s’est soldé par un nombre de victimes sans précédent dans l’histoire de l’Amérique latine. Les protagonistes de la lutte armée furent aussi bien des collectifs subversifs (PCP-SL et MRTA) que l’Armée et la Police ainsi que la population paysanne organisée en milices (rondes paysannes). Les conséquences furent évidemment dramatiques puisqu’en plus des nombreuses pertes humaines qu’il faut déplorer se combinait la tragique désagrégation du lien social. Les femmes qui participèrent directement ou indirectement au conflit, si elles ne sont pas aujourd’hui décédées, portent les stigmates des affrontements : cicatrices, viols, grossesses non désirées, stress post-traumatique. Il s’agit ici des victimes des deux camps, mais aussi de celles qui se sont converties en agent de la justice pour récupérer leurs proches, leurs époux et leurs fils, formant ainsi les premiers collectifs de revendication des droits de l’homme. Cependant, celles qui ont bénéficié de la reconnaissance médiatique sont sans nul doute celles qui ont perpétré les crimes : les femmes qui ont pris les armes comme militantes, combattantes ou comme membres des forces de l’ordre. Between 1980 and 2000, Peru experienced an internal armed conflict that resulted in victims in numbers unprecedented in the history of Latin America. The protagonists of the armed struggle included the subversive collectives (PCP-SL and MRTA), as much as the army, the police and the rural militias ( ronde paysanne ). The consequences were dramatic in that the sheer human losses were compounded by a tragic unraveling of the social fabric. Women who participated directly or indirectly in the conflict – if they still live – bear the stigmata of their experience: scars, rape, post-traumatic stress. Here, we consider the victims of both camps, but also those women who became justice agents making claims on behalf of their own near relations, their spouses and children – thus forming the first human rights collectives. However, the women who have benefited from media recognition undoubtedly include those who committed crimes: women who took up arms as militants, combatants, or as members of the forces of order.Sexual Violence, Peru’s Internal Armed Conflict, Women, Terrorism, Human Rights, Torture, Truth and Reconciliation Commission, Victims Entre 1980 y 2000 el Perú vivió uno de los conflictos armados con más bajas en la historia de América Latina producidas tanto por las fuerzas subversivas (PCP-SL y MRTA) como por las fuerzas armadas y policiales, así como po
Compact Solvmanifolds with a Closed G2-Structure  [PDF]
Marisa Fernández, Jonatan Sanchez, Jose A. Santisteban
Advances in Pure Mathematics (APM) , 2018, DOI: 10.4236/apm.2018.811050
Abstract: We consider a parametrized family of compact G2-calibrated solvmanifolds, and construct associative (so volume-minimizing submanifolds) 3-tori with respect to the closed G2-structure. We also study the Laplacian flow of this closed G2 form on the solvable Lie group underlying to each of these solvmanifolds, and show long time existence of the solution.
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