2,469 research outputs found
Estudio de la formación en los centros de trabajo comparando las formaciones profesionales de determinados países europeos
Los valores, normas, actitudes, convicciones e ideales de una sociedad configuran el sistema educativo de la misma. Por esta razón, el sistema educativo, de un país concreto no tiene porque obtener los mismos resultados en otro país con diferentes valores, normas, actitudes, etc.
A pesar de no poder suplantar en su totalidad el sistema educativo de otro país, creo oportuno recoger sus métodos y analizarlo para recoger aquellas normas o metodologías que podrían mejorar la formación profesional en nuestro país.
El objeto del trabajo final de máster es estudiar la formación profesional en diferentes países europeos repasando la historia de la formación profesional en Europa con el fin de encontrar puntos de mejora a nuestro actual sistema.
En el estudio de la formación profesional nos centraremos en el módulo de formación en el centro de trabajo, comparando como lo desempeñan otros paísesMáster Universitario en Profesorado de Educación Secundaria por la Universidad Pública de NavarraBigarren Hezkuntzako Irakasletzako Unibertsitate Masterra Nafarroako Unibertsitate Publikoa
Optic nerve sheath diameter, mean flow rate, pulsatility index and preeclampsia
Background. Ultrasound has led to non-invasive neuromonitoring for surveillance and decision-making of aspects affecting the central nervous system. The aim was to determine the correlation between mean blood pressure and bilateral optic nerve sheath diameter, pulsatility index and mean flow rate of the middle cerebral artery in cases of preeclampsia/eclampsia. Methods. It was a prospective cohort study, including pregnant women diagnosed with preeclampsia/eclampsia who received medical attention in an Intensive Care Unit. The registered ultrasonographic measurements (optic nerve sheath diameter, pulsatility index and mean fl ow rate) were correlated against mean blood pressure at admission and after 24 and 72 hours. The recorded data were entered in an Excel sheet with subsequent use of the Social Science Statistics online web page. Results. The correlation analysis indicated that at admission, mean blood pressure had a significant negative correlation with mean flow rate (right: R2 = -0.52547, p = 0.04426 and left: R2 = -0.63628, p = 0.01077). In relation to optic nerve sheath diameter, the only positive and signifi cant correlation was the one observed with mean blood pressure after 24 hours following admission (R2 = 0.56980, p = 02659). Conclusion. Mean fl ow rate measurements give more consistent and useful information than optic nerve sheath diameter in the hemodynamic evaluation of the preeclamptic women in the first 24 hours
Consumer behavior in the disposition of disliked gifts
La entrega y recepción de regalos ha sido investigada en diversos campos, incluido el comportamiento del consumidor. El presente estudio analiza el comportamiento de disposición de regalos no gustados de una muestra de 958 individuos adultos en Ecuador (un país latinoamericano). A nivel descriptivo, el método de disposición más frecuente de este tipo de regalos es el almacenamiento. A nivel multivariante, la edad, el género, el ingreso y el colectivismo del receptor; el impacto del regalo en la relación dador-receptor; el tiempo transcurrido desde la recepción del regalo; el precio estimado del regalo y si el regalo fue o no usado; predicen el método de disposición de los regalos no gustados. Adicionalmente se discuten estos resultados y sus implicaciones.Giving and receiving gifts have been investigated in many fields of study, including consumer behavior. This study analyzes the behavior of a sample of 958 adults from Ecuador (a Latin American country), focusing on the disposition of gifts that recipients do not like. At the descriptive level, the most common disposition method of these gifts is storage. At the multivariate level, age, gender, income, and collectivism of receiver; the gift impact on the giver-receiver relationship; the time elapsed since the receiving of the gift; the estimated price of the gift and whether the gift was used or not predict the disposition method of the disliked gift. These results and their implications are discussed
Projections of Heat Waves Events in the Intra-Americas Region Using Multimodel Ensemble
Significant accelerated warming of the Sea Surface Temperature of 0.15°C per decade (1982–2012) was recently detected, which motivated the research for the present consequences and future projections on the heat index and heat waves in the intra-Americas region. Present records every six hours are retrieved from NCEP reanalysis (1948–2015) to calculate heat waves changes. Heat index intensification has been detected in the region since 1998 and driven by surface pressure changes, sinking air enhancement, and warm/weaker cold advection. This regional warmer atmosphere leads to heat waves intensification with changes in both frequency and maximum amplitude distribution. Future projections using a multimodel ensemble mean for five global circulation models were used to project heat waves in the future under two scenarios: RCP4.5 and RCP8.5. Massive heat waves events were projected at the end of the 21st century, particularly in the RCP8.5 scenario. Consequently, the regional climate change in the current time and in the future will require special attention to mitigate the more intense and frequent heat waves impacts on human health, countries’ economies, and energy demands in the IAR
Hematina como catalizador biomimético en la síntesis de polianilina conductora.
El propósito de este trabajo fue la polimerización de la anilina utilizando la hematina como catalizador biomimético en un medio de reacción ácido utilizando como disolvente el ácido acético, lo cual permitió realizar la síntesis de polianilina sin la necesidad de usar “plantillas” las cuales afectan las propiedades electroquímicas del producto final. El polímero sintetizado mediante esta técnica mostró buenas características estructurales tal y como lo demostraron los espectros de FTIR y UV-Vis. Además de contar con una buena cristalinidad y estabilidad térmica, como se pudo constatar en las pruebas de DRX y TGA respectivamente. La conductividad eléctrica, la electroactividad y la reversibilidad oxidativa de la polianilina sintetizada fueron bastante aceptables considerando las condiciones de síntesis. Finalmente el proceso de optimización de la reacción llevó a rendimientos de hasta 70%
Additive manufacturing of mode converters in Ku and Q bands by selective laser sintering: experience and results
In recent years, Additive Manufacturing (AM) has turned out as a disruptive technology [1]. Fast production,
rapid prototyping or adaptability, are essential concepts in sectors such as automotive, aerospace, biotech, etc. [2],
[3]. In microwave engineering, the main advantages of AM are the possibility to produce customized items and
the complexity of the implemented geometries compared with other technologies such as Computer Numerical
Control (CNC) machining, injection moulding, casting or Electrical Discharge Machining (EDM).
Nowadays, AM technologies are focused on the development of the next generation of microwave and millimetrewave
devices. Regarding high-frequency circuits, and more specifically in the case of waveguide technology
devices, the impact has been very relevant [4]. The initial efforts have been focused on filters, couplers, feed
components and antennas. However, in this work the experience and results with other sort of devices, i.e., the
mode converters, will be exposed. These broadband devices without resonant behaviour and strong
electromagnetic fields are especially well-suited to cope with the two main problems of AM, i.e., the
manufacturing accuracy and the surface roughness. Two different mode converters have been designed and
manufactured by means of Selective Laser Sintering technology using aluminium alloy powder. The first one is
a TE10 rectangular mode to TM01 circular mode converter in Ku-band and the second one is a TE10 rectangular
mode to TE01 circular mode flared-type converter in Q-band. The experimental results obtained in both cases will
be presented in detail. In addition, the issues related to the orientation of the parts inside the building chamber and
other undesirable effects such as spikes due to manufacturing asymmetries, will be shared with the scientific
community
Las Escuelas Infantiles Mucipales (0-3 Años) Aproximación A Un Estudio De Calidad En Canarias
The panorama of kindergartens Canary, as a whole today, is uncertain due to lack of subsidies and as a result of the global crisis that took place in our country years ago. In addition, large cuts have been made and are still continuously used to make public administrations which affect sensitive way to education. Furthermore, we have analyzed the reality of municipal kindergartens of the Canary Islands. This analysis was done based on what we have considered to be a minimum quality criteria for the effective functioning of these services. Also, we have tried to catch a glimpse of the reality of these schools so as to offer the keys to a model of educational management. This however guarantees both the quality of service and the user’s satisfaction
Estudio de las características de los pacientes con colangitis biliar primaria sin respuesta a ácido ursodesoxicólico en el Área Norte de Tenerife
- …