Search results for "75"
showing 10 items of 1365 documents
An analysis of model predictive control with integral action applied to digital displacement cylinders
2020
This article aims to analyze Model Predictive Control (MPC) for the control of multi-chamber cylinders. MPC with and without integral action has been introduced. Three different algorithms have been used to solve the optimization problem in the MPC. The different algorithms have been compared with an industrial solver. The influence of changing mass, choosing a different middle line pressure, system delays, signal noise, velocity estimation, and changing pressure levels has been investigated. It is concluded that for the small prediction horizon used in the paper a simple algorithm such as A can produce results as good as the previously used Differential Evolution algorithm in less than hal…
Digital zenith camera for vertical deflection determination
2012
Recent accomplishments in advancement of accurate astrometric reference star catalogues, development of digital imaging technology, high accuracy tiltmeter technology, and geocentric coordinate availability provided by GNSS, have made possible accurate, fast and automated determination of vertical deflections using astrometric methods. Zenith cameras for this kind of measurements have been developed or are being developed by several research groups. The paper describes a research project by Institute of Geodesy and Geoinformation, intended to design a portable digital zenith camera for vertical deflection determination with 0.1” expected accuracy. Camera components are described, proposed d…
El despido de los trabajadores enfermos "con procesos de larga duración": cambio jurisprudencial a raíz de la doctrina Daouidí
2020
A Dataset of Annotated Omnidirectional Videos for Distancing Applications
2021
Omnidirectional (or 360°) cameras are acquisition devices that, in the next few years, could have a big impact on video surveillance applications, research, and industry, as they can record a spherical view of a whole environment from every perspective. This paper presents two new contributions to the research community: the CVIP360 dataset, an annotated dataset of 360° videos for distancing applications, and a new method to estimate the distances of objects in a scene from a single 360° image. The CVIP360 dataset includes 16 videos acquired outdoors and indoors, annotated by adding information about the pedestrians in the scene (bounding boxes) and the distances to the camera of some point…
Sykepleieres erfaringer med tidlig mobilisering av intuberte intensivpasienter
2014
Masteroppgave i spesialsykepleie – Universitetet i Agder 2014 Background: Studies show that early mobilization of the intubated ICU patients brings positive benefits for the patient. Aim: To illuminate nurses’ experiences with early mobilization of intubated patients in the ICU. Method: It was conducted individual interviews with six intensive care nurses from an ICU in Denmark. The data was analyzed using a qualitative content analysis. Results: The analysis resulted in three categories "New mobilization routines", "Benefits" and "Challenges" with two subcategories each, "New mobilization guide" and "Utilities", "The benefits for the patient" and "Economic benefits" and "Challenges in the …
Trygghet når du trenger det mest : en kvalitativ studie av intensivsykepleieres erfaringer med bruk av CAM-ICU.
2016
Masteroppgave i spesialsykepleie – Universitetet i Agder 2016 Background: 50-90 % of all patients whom is hospitalized in an ICU will suffer from intensive care delirium. The decision-making-tool CAM-ICU is used and activated in many of the intensive-care units in Norwegian hospitals. Some research show that the tool isn’t used correctly – therefor I wanted to find out what experience my fellow ICU-nurses had with the tool. Aim and objective: The aim of this study is to gain a broad understanding into the ICU-nurses experience, using CAM-ICU. Method: Seven qualitative semi-structured interviews were conducted by a total of eight ICU-nurses using CAM-ICU to identify and prevent delirium. The…
The social gradient in stress and depressive symptoms among adolescent girls: A systematic review and narrative synthesis
2019
Aim: Socioeconomic inequality is found to negatively influence mental health, but studies investigating the relationship between socioeconomic status (SES) and specific common mental health problems such as stress and depressive symptoms in the general adolescent population are needed. Moreover, gender gaps in mental health among adolescents are evident, but there is a lack of studies that investigate socioeconomic differences in mental health within genders. As girls report consistently more depressive symptoms than do boys, this systematic review specifically investigates whether socioeconomic status is associated with stress and depressive symptoms among adolescent girls in the general p…
Caracterización molecular de los receptores de gonadotrofinas de lubina (Dicentrarchus labrax)
2008
En los vertebrados, las gonadotrofinas (FSH y LH) son hormonas esenciales en el control de la gametogénesis y esteroidogénesis gonadal. Sus acciones están mediadas por la activación de sus respectivos receptores. A pesar de su importancia en la función reproductora, en teleósteos se dispone de muy poca información relativa a estos receptores. En este trabajo se investigaron las características moleculares, estructurales y funcionales de los receptores de gonadotrofinas (FSHR y LHR) de un teleósteo marino, la lubina (Dicentrarchus labrax). Además, se evaluó la especificidad de unión al ligando de estos receptores. Usando un método de RT-PCR cuantitativo, se midieron los perfiles de expresión…
Revista de educación
2016
Los datos estadísticos suponen un elemento de gran relevancia para analizar la realidad educativa, independientemente de que esta sea, presente, pasada, global o parcial. Pese a su indudable trascendencia, los estudios de la denominada historia de la estadística escolar en España son muy escasos, especialmente los enmarcados en el siglo XX. El objetivo de este artículo es analizar los datos estadísticos referidos al bachillerato español en el periodo comprendido entre 1930 y 1970, haciendo especial hincapié en la presentación de la información, sus cambios y las razones que los motivaron. Para ello hemos efectuado, en primer término, una profunda revisión de las fuentes estadísticas disponi…
Revista complutense de educación
2019
espanolLa ensenanza secundaria espanola sufrio un notable cambio en la decada de 1950. Se produjo la ruptura efectiva del modelo de ensenanza dual, al permitir a chicos y chicas de familias obreras y de escasos ingresos accedieran al bachillerato, lo que les estaba practicamente vetado hasta entonces. Las autoridades educativas otorgaron tanta importancia a esa politica que tuvo denominacion especifica: la extension de la ensenanza media. Este trabajo se centra en el analisis del discurso que apoyo y explicito tal politica. Para ello se han localizado declaraciones y tomas de posicion de los principales responsables del ministerio de educacion que conformaron el discurso oficial que impulso…