Organización y gestión como determinantes de la aplicación de intervenciones en APS

La historia de la enfermería en el desarrollo de los servicios sanitarios comunitarios, la convierten en una profesión líder en la atención de las personas. La enfermería de salud comunitaria es un componente necesario en la prestación de cuidados sanitarios para mejorar la salud de la población en general; constituye el mayor potencial al alcance de los países en desarrollo, para extender sus servicios sanitarios a la población más necesitada. El trabajo de la enfermería comunitaria se basa en la identificación de problemas y en la planificación de actividades de promoción de la salud, prevención de enfermedades y desarrollo de actividades educativas; priorizando a los grupos vulnerables identificados, las familias o los individuos, haciendo uso de todos los recursos disponibles en el sistema familiar. Situación que le permite ser dinámica y creativa a fin de suplir las necesidades de la sociedad, como proveedoras primarias en el cuidado a la salud. Se reconoce que el profesional de enfermería es un componente importante dentro de la estructura de la Atención Primaria de la Salud (APS), ya que al identificar las necesidades sanitarias de la comunidad y promover su participación activa, cumple con el objetivo de planificar, organizar, gestionar, ejecutar y evaluar los programas relacionados con la salud y el bienestar de la población, haciendo uso de sus habilidades de interacción interpersonal, no sólo con la comunidad, sino también, con los miembros del equipo de salud y otros sectores importantes, en pro de satisfacer las necesidades identificadas. En este contexto, es necesario evaluar el nivel de satisfacción o insatisfacción que experimentan las enfermeras/ros comunitarias en su trabajo, la cual estará condicionada por numerosos factores, tales como el ambiente físico donde trabajan, remuneración económica que perciben, la interrelación que ejercen con sus compañeros y jefes, el sentido de realización/logro, la posibilidad de aplicar y desarrollar nuevos conocimientos y asumir retos, entre otros. El propósito de esta investigación es el de identificar los factores determinantes que condicionan la satisfacción en el trabajo de los enfermeros comunitarios y determinar si el modelo de gestión del Área de Salud de General Alvear, Mendoza influye en la aplicación de intervenciones de APS que realizan los enfermeros, en el año 2011.Fil: González, Sergio. Universidad Nacional de Cuyo. Facultad de Ciencias Médicas. Escuela de Enfermería..Fil: Martínez, Sergio. Universidad Nacional de Cuyo. Facultad de Ciencias Médicas. Escuela de Enfermería.

A Simplified Electro-Mechanical Model of a DFIG-based Wind Turbine for Primary Frequency Control Studies

In recent years, world-wide power systems are experiencing a steadily growth of wind power penetration. A common concern in the operation of such systems is related to the frequency stability. Modern variable speed wind turbines have a limited capacity in providing ancillary services, such as fast-frequency response and primary frequency regulation. Recent developments in wind plant controllers allow performing active power control from all its units to respond to system frequency deviations. It is thus important to study the effects of the presence of these plants in the system frequency response. Existing detailed models of wind turbines are not suitable to this goal because their complexity makes them impractical for system-wide studies. This paper presents a simplified model of a wind turbine with Doubly-Fed Induction Generator specifically conceived for such studies, along with its validation with a detailed mode

Contribution of DFIG wind turbines to Primary Frequency Control

In recent years, worldwide power systems are experiencing a steadily growth in wind power penetration. A common concern in the operation of such systems is related to the frequency stability. Modern variable speed wind turbines have a limited capacity in providing ancillary services, such as: fastfrequency response and primary frequency regulation. This thesis aims at developing a new methodology for the analysis of frequency dynamics in largescale power systems with high level of wind energy share. Firstly, a simplified electromechanical model of a doubly fed induction generator (DFIG) based wind turbine has been proposed. In addition, a virtual inertia controller version of the optimized power point tracking method (OPPT) has been adapted for this kind of wind turbines. In this method, the maximum power point tracking curve (MPPT) is shifted to drive variations in the active power injection as a function of the grid frequency deviation, by exploiting the available inertial resources. The proposed methodology integrates the model in a primary frequency control scheme to assess the interaction with the rest of the plants in the power system

Modeling and control of a direct drive point absorber for wave energy harvesting

Several devices have been developed to convert the wave energy into electricity and they can be found in different degrees of development. A very interesting group of wave energy converters (WEC) is composed of direct drive systems which are characterized by having a simpler mechanical structure compared to others. For example, in the Archimedes Wave Swing (AWS) and the Uppsala/Seabed AB WEC, the Power Take-Off (PTO) system is composed of a linear permanent magnet synchronous generator (PMSG). Due to the nature of the ocean waves, this electricity presents high variability both in amplitude and in frequency. For this reason, direct drive systems require power electronics to convert this very irregular electricity into a form suitable for the grid connection. This work is focused on the WEC modeling in time-domain and, taking advantage of the electronic converter, on maximizing the captured power

Effect of graphene on the fracture behaviour of 3D printed PLA SENB specimens

ABSTRACT: This paper analyses the effect of graphene addition on the fracture behaviour of 3D printed PLA SENB specimens containing crack-like defects. The addition of graphene is assumed to improve the tensile behaviour of 3D printed PLA material, but the integrity of structural components strongly depends on the material fracture resistance. Tensile and fracture SENB specimens have been tested with different raster orientations (0/90, 30/-60 and 45/-45), showing that the effect of graphene addition (1 wt. %) is very sensitive to the raster orientation: this effect is significant for raster orientation 45/-45 and very limited for 0/90 (with 30/-60 providing intermediate results).The authors of this work would like to express their gratitude to the Spanish Ministry of Science and Innovation for the financial support of the project PGC2018-095400-B-I00 “Comportamiento en fractura de materiales compuestos nano-reforzados con defectos tipo entalla”

Albert Camus in the classrooms: an ethical-political review of his tought

RESUMEN: Albert Camus fue galardonado con el Premio Nobel a la edad de cuarenta y tres años. ¿Escritor, filósofo o dramaturgo? Albert Camus fue un artista, un hombre complejo que escribió una de las novelas más influyentes del siglo XX El extranjero En el presente trabajo analizaré parte de su obra, especialmente el libro titulado Cartas a un amigo alemán y trataré de acercar su pensamiento a la realidad de las aulas de Secundaria.ABSTRACT: Albert Camus was awarded with the Nobel Prize at the age of fourty three, Writer, philospher or a dramatist? Albert Camus was an artist, a complex man, he wrote one of the most influential books of the 20th century The outsider. In the present paper I´ll try to analize part of his work, specially the book named Letters to a German Friend and if his tought can be brought in the secondary school.Máster en Formación del Profesorado de Educación Secundari

Structural integrity assessment of additively manufactured ABS, PLA and graphene reinforced PLA notched specimens combining Failure Assessment Diagrams and the Theory of Critical Distances

ABSTRACT: Failure Assessment Diagrams (FADs) are a widely used engineering tool for the analysis of structural components containing cracks, and are included in recognised structural integrity assessment procedures such as BS7910 and API 579 1/ASME FFS 1. Their consistency and reliability has been demonstrated over the years through numerous laboratory validation tests and industrial applications. Nevertheless, both their theoretical definition and their subsequent validation have been performed in metallic materials and, therefore, their use in other types of materials still requires theoretical support and experimental validation. Moreover, FADs have been initially defined for the analysis of crack-like defects, whereas there are many situations where the defects that are, or might be, responsible for structural failure are not necessarily cracks. This is the case of (non-sharp) defects with a finite radius on their tip, which here will be referred to as notches. Simultaneously, additive manufacturing (AM) is an emergent technology that allows practically any type of geometry to be fabricated through a relatively simple process. One of the main AM techniques is fused deposition modelling (FDM), which consists in the extrusion of heated feedstock plastic filaments through a nozzle tip. The resultant printed materials have rather particular properties that are very dependent on the printing parameters and on the final state of internal defects. Concerning AM polymers and polymer-matrix composites, their use as structural materials, beyond their main current use in prototyping, requires the development of specific structural integrity assessment procedures. This paper provides FAD analyses for three additively manufactured (FDM) materials containing U-shaped notches: ABS, PLA and graphene reinforced PLA. The results show that the FAD methodology may be applied for the estimation of fracture loads in these particular materials, as long as linear-elastic fracture toughness values are used.This publication is part of the project “Comportamiento en fractura de materiales compuestos nano-reforzados con defectos tipo entalla, PGC2018-095400-B-I00” funded by MCIN/ AEI /10.13039/ 501100011033/ FEDER “Una manera de hacer Europa

Master curve evaluation of ANP-5 steel using mini-CT specimens

The nuclear industry demands analyses that make possible the long-term operation of nuclear power plants (i.e., beyond 40 years). In this sense, one of the main challenges to overcome is the restricted amount of material available to extend the surveillance programs. To mitigate this issue, mini-CT specimens have been proposed for the evaluation of the fracture properties of reactor pressure vessel (RPV) materials, and particularly, the corresponding Master Curve. These specimens can be taken from the broken halves of previously tested Charpy specimens. In this work, mini-CT specimens have been employed to evaluate the reference temperature of the RPV ANP-5 steel in non-irradiated conditions. The results were compared with those obtained by means of conventional fracture tests.This project has received funding from the Euratom research and training programme 2020-2024, under grant agreement No. 900014. The significant contribution of the FRACTESUS project members is also acknowledged

Analysis of additively manufactured PLA containing notches using Failure Assessment Diagrams

ABSTRACT: This paper provides a methodology for the estimation of the load-bearing capacity of additively manufactured (AM) PLA specimens that may be applied to both cracked and notched conditions. The methodology is based on the use of Failure Assessment Diagrams (FADs), which are, in practice, the main fracture-plastic collapse assessment tool provided by structural integrity assessment procedures. When dealing with notch-type defects, the methodology requires, additionally, the application of a notch correction that it is based on the Theory of Critical Distances (TCD) and the Creager-Paris stress distribution ahead of the cracktip. The results show that the FAD methodology (alone, in cracked conditions, or in combination with the TCD in notched conditions) can be successfully applied in this AM polymer.This publication is part of the project “Comportamiento en fractura de materiales compuestos nano-reforzados con defectos tipo entalla, PGC2018-095400-B-I00” funded by MCIN/ AEI /10.13039/501100011033/ FEDER "Una manera de hacer Europa