1,688 research outputs found
La aplicación del "Test de vocabulario en imágenes" (TEVI) en España: el caso de Cáceres
Se presenta el estudio realizado sobre un conjunto de diez niños y niñas con edades entre los cuatro y cinco años, pertenecientes a la clase media de Cáceres, a los que se les ha aplicado el Test de vocabulario en imágenes (TEVI) para determinar su comprensión léxica. Se tienen en cuenta dos variables, edad y sexo. Parece demostrarse que es lógico que a mayor edad mayor comprensión léxica. La variable de sexo no parece ser importante, ya que en este caso los informantes acuden a escuelas mixtas en las que los papeles masculino y femenino se difuminan en los juegos y otras actividades infantiles. Parece que la conclusión última es que el TEVI no discrimina en lo que se refiere a las dos variables, edad y sexo, utilizadas en este estudio.In this study we present the work performed on a set of ten boys and girls between the ages of four and five years, belonging to the middle class of Caceres. Has been applied to them the Picture vocabulary test (TEVI) to determine their understanding lexical. Two variables, age and gender are taken into account. The gender variable does not seem to be important, since in this case the respondents attend mixed schools in which the male and female roles are blurred in games and other children's activities. It seems that the ultimate conclusion is that the TEVI not discriminate in regard to the two variables, age and sex, used in this study
Using Wavelets for Feature Extraction and Self Organizing Maps for Fault Diagnosis of Nonlinear Dynamic Systems
A NEW CLASSIFICATION OF IT RESOURCES: A RESEARCH AGENDA UNDER THE COMPLEMENTARITY OF THE RBV
The effects of Information Technology (IT) on firm performance constitute one of the most recent lines of research. In developing this study, we take a Resource-Based View (RBV) as our basic theoretical focus. Adopting this paradigm means that IT alone is incapable of sustaining a competitive advantage (CA), making it necessary to analyze the existence of resources that complement IT to achieve greater organizational performance. The goal of this paper is to determine the combination of key resources, both exclusively IT resources and other organizational resources not necessarily belonging to this technology, to set a useful research agenda to contribute to the improvement of current knowledge of the IT effects on organizational performance.Information Technology, organizational performance, RBV.
An End to a Means: How DNA-End Structure Shapes the Double-Strand Break Repair Process
Endogenously-arising DNA double-strand breaks (DSBs) rarely harbor canonical 5'-phosphate, 3'-hydroxyl moieties at the ends, which are, regardless of the pathway used, ultimately required for their repair. Cells are therefore endowed with a wide variety of enzymes that can deal with these chemical and structural variations and guarantee the formation of ligatable termini. An important distinction is whether the ends are directly "unblocked" by specific enzymatic activities without affecting the integrity of the DNA molecule and its sequence, or whether they are "processed" by unspecific nucleases that remove nucleotides from the termini. DNA end structure and configuration, therefore, shape the repair process, its requirements, and, importantly, its final outcome. Thus, the molecular mechanisms that coordinate and integrate the cellular response to blocked DSBs, although still largely unexplored, can be particularly relevant for maintaining genome integrity and avoiding malignant transformation and cancer.España, Junta de AndalucĂa SAF2017-89619-R, CVI-7948European Research Council (ERC-CoG-2014-647359
Fuzzy Networked Control Systems Design Considering Scheduling Restrictions
Nowadays network control systems present a common approximation when connectivity is the issue to be solved based on time delays coupling from external factors. However, this approach tends to be complex in terms of time delays. Therefore, it is necessary to study the behavior of the delays as well as the integration into differential equations of these bounded delays. The related time delays needs to be
known a priory but from a dynamic real-time behavior. To do so, the use of priority dynamic Priority exchange scheduling is performed. The objective of this paper is to show a way to tackle multiple time delays that are bounded and the dynamic response from real-time scheduling approximation. The related control law is designed considering fuzzy logic approximation for nonlinear time delays coupling, where the main advantage is the integration of this behavior through extended state space representation keeping certain linear and bounded behavior and leading to a stable situation during events presentation by guaranteeing stability through Lyapunov
Switched Convergence of Second-Order Switched Homogeneous Systems
This paper studies the stabilization of second-order switched homogeneous systems. We present results that solve the problem of stabilizing a switched homogeneous system; that is, we establish necessary and sufficient conditions under which the stabilization is assured. Moreover, given an initial condition, our method determines if there exists a switching law under which the solution converges to the origin and, if there exists this switching law, how it is constructed. Finally, two numerical examples are presented in order to illustrate the results
CĂłdigo ictus
35 páginasTrabajo de Curso de Experto Universitario en Medicina de Urgencias y Emergencias (2013). Tutor: Francisco Temboury Ruiz. El ictus es una urgencia neurolĂłgica que exige un tratamiento precoz y una asistencia hospitalaria, al disponer de medidas terapĂ©uticas eficaces. Se ha demostrado que la aplicaciĂłn de medidas generales del tratamiento prehospitalario y hospitalario ha reducido de forma considerable su mortalidad y sus secuelas. A esto hay que añadir los beneficios de las medidas especĂficas, como la atenciĂłn precoz por neurĂłlogos expertos en unidades o equipos de ictus, o la utilizaciĂłn de fármacos trombolĂticos en las primeras horas, dentro de la llamada ventana terapĂ©utica, cuando el área de penumbra isquĂ©mica es un tejido cerebral potencialmente salvable.
Esto obliga a coordinar los diferentes niveles asistenciales para asegurar el mĂnimo tiempo de respuesta que permita la evaluaciĂłn y el tratamiento en el medio hospitalario. En este sentido, se ha mostrado Ăştil la implantaciĂłn del llamado "cĂłdigo ictus" para coordinar el servicio extrahospitalario de transporte urgente con el servicio hospitalario de Urgencias y de NeurologĂa (unidad de ictus) o en su defecto equipo de ictus
ActualizaciĂłn de la sepsis en adultos. CĂłdigo sepsis
52 páginasTrabajo de Curso de Experto Universitario en Abordaje del Paciente en AtenciĂłn Primaria (2013-14). Director/Tutor: Juan JosĂ© Sánchez Luque. La sepsis es la respuesta inflamatoria generalizada del organismo frente a una infecciĂłn, de cuya intensidad depende el grado de disfunciĂłn de los diferentes Ăłrganos y sistemas. Su mortalidad se incrementa proporcionalmente con el nivel de gravedad clĂnica y el nĂşmero de Ăłrganos afectados, habiĂ©ndose descrito en los Ăşltimos años una mortalidad del 15-16% para la sepsis, del 20-30% en la sepsis grave y del 45-54% en el shock sĂ©ptico.
Para la correcta detecciĂłn y tratamiento de la sepsis se creĂł el CĂłdigo sepsis, protocolo de actuaciĂłn clĂnica, estandarizado y ordenado en el que el tiempo marca de forma decisiva la actuaciĂłn mĂ©dica, semejante al Codigo ictus o Codigo infarto de Miocardio. Lo que le hace diferir de ambos y le confiere una caracterĂstica especial, es que los anteriores tienen una sintomatologĂa univoca en general, mientras que los sĂntomas y signos de sepsis son menos especĂficos y más dispersos en el tiempo..
Esto hace más difĂcil el diagnĂłstico de sospecha de una sepsis, sobre todo en sus momentos más tempranos, donde el tratamiento es más eficaz y puede realmente salvar vidas
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