Una necesidad actual : la enfermera escolar

Treball Final de Grau en Mestre o Mestra d'Educació Infantil. Codi: MP1040. Curs: 2015/2016Cada vez, se encuentran más casos de niños con dolencias y discapacidades crónicas en centros educativos, que deben ser integrados y atendidos en sus necesidades de salud. Por este motivo, se requiere una sucesión de cuidados y atenciones en dicho centro. Se refiere con ello, a niños que tienen problemas de salud como son la epilepsia, asma, diabetes, alergias, alumnos con enfermedades como espina bífida o parálisis cerebral, entre otras. Estas dolencias pueden conllevar a una serie de discapacidades físicas que actualmente no están siendo atendidas por profesionales de la salud en el ámbito escolar, ámbito en el que pasan la mayor parte del día: el colegio. Por tanto, el objetivo de este trabajo final de grado va a consistir en realizar un estudio teórico sobre una necesidad actual: la enfermera escolar. Como base de dicho estudio, se va investigar y analizar si los profesionales de Enfermería serían los candidatos idóneos para estos programas, ya que podrían garantizar la asistencia inmediata, el seguimiento y el cuidado de estos niños con enfermedades crónicas

De betekening over de grenzen heen: streven naar rechtszekerheid tussen fictie en werkelijkheid

B

Host-guest blue light-emitting electrochemical cast

Carbazole, a commonly used hole-transporter for organic electronics, has been modified with an imidazolium cation and a hexafluorophosphate counter-anion to give an ionic hole-transporter. It has been applied as one of the hosts in a host-guest blue light-emitting electrochemical cell (LEC) with the neutral blue emitter FIrPic. We have obtained efficient and bright blue LECs with an electroluminescence maximum at 474 nm and efficacy of 5 cd A(-1) at a luminance of 420 cd m(-2), thereby demonstrating the potential of the ionic organic charge-transporters and of the host-guest architecture for LECs

Exceptionally long-lived light-emitting electrochemical cells: multiple intra-cation π-stacking interactions in [Ir(C^N)2(N^N)][PF6] emitters

A series of cyclometalated iridium(III) complexes [Ir(C^N)2(N^N)][PF6] (N^N = 2,2′-bipyridine (1), 6-phenyl-2,2′-bipyridine (2), 4,4′-di-tert-butyl-2,2′-bipyridine (3), 4,4′-di-tert-butyl-6-phenyl-2,2′-bipyridine (4); HC^N = 2-(3-phenyl)phenylpyridine (HPhppy) or 2-(3,5-diphenyl)phenylpyridine (HPh2ppy)) are reported. They have been synthesized using solvento precursors so as to avoid the use of chlorido-dimer intermediates, chloride ion contaminant being detrimental to the performance of [Ir(C^N)2(N^N)][PF6] emitters in light-electrochemical cell (LEC) devices. Single crystal structure determinations and variable temperature solution 1H NMR spectroscopic data confirm that the pendant phenyl domains engage in multiple face-to-face π-interactions within the coordination sphere of the iridium(III) centre. The series of [Ir(Phppy)2(N^N)]+ and [Ir(Ph2ppy)2(N^N)]+ complexes investigated include those with and without intra-cation face-to-face π-stacking. All the complexes display excellent luminescent properties, in particular when employed in thin solid films. The most important observation is that all the LECs using the [Ir(Phppy)2(N^N)]+ and [Ir(Ph2ppy)2(N^N)]+ emitters (i.e. with and without intra-cation π-stacking interactions) exhibit very stable luminance outputs over time, even when driven at elevated current densities. The most stable LEC had an extrapolated lifetime of more than 2500 hours under accelerated testing conditions

Universal transients in polymer and ionic transition metal complex light-emitting electrochemical cells

Two types of light-emitting electrochemical cells (LECs) are commonly distinguished, the polymer-based LEC (p-LEC) and the ionic transition metal complex-based LEC (iTMC-LEC). Apart from marked differences in the active layer constituents, these LEC types typically show operational time scales that can differ by many orders of magnitude at room temperature. Here, we demonstrate that despite these differences p-LECs and iTMC-LECs show current, light output, and efficacy transients that follow a universal shape. Moreover, we conclude that the turn-on time of both LEC types is dominated by the ion conductivity because the turn-on time exhibits the same activation energy as the ion conductivity in the off-state. These results demonstrate that both types of LECs are really two extremes of one class of electroluminescent devices. They also implicate that no fundamental difference exists between charge transport in small molecular weight or polymeric mixed ionic and electronic conductive materials. Additionally, it follows that the ionic conductivity is responsible for the dynamic properties of devices and systems using them. This likely extends to mixed ionic and electronic conductive materials used in organic solar cells and in a variety of biological systems