Clinicians' caseload management behaviours as explanatory factors in patients' length of time on caseloads : a predictive multilevel study in paediatric community occupational therapy

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Deep blue oxadiazole-containing thermally activated delayed fluorescence emitters for organic light-emitting diodes

EZ-C thanks the University of St Andrews for support. The authors are grateful to the EPSRC for financial support (grants EP/P010482/1, EP/J01771X and EP/J00916). IDWS is a Royal Society Wolfson Research Merit Award Holder. CM acknowledges funding by the European Commission through a Marie Skłodowska Curie Individual Fellowship (No. 703387).A series of four novel deep blue to sky blue thermally activated delayed fluorescence (TADF) emitters (2CzdOXDMe, 2CzdOXD4MeOPh, 2CzdOXDPh and 2CzdOXD4CF3Ph) have been synthesized and characterized. These oxadiazole-based emitters demonstrated bluer emission compared with reference emitter 2CzPN thanks to the weaker acceptor strength of oxadiazole moieties. In particular, the oxadiazole compounds doped in hosts (mCP and PPT) emitted from 435-474 nm with photoluminescence quantum yields ranging from 14%-55%. The emitters possess relatively large singlet-triplet excited state energy gaps (ΔEST) from 0.25-0.46 eV resulting in long lifetimes of the delayed components ranging from 4.8 to 25.8 ms. Electroluminescent devices using these oxadiazole emitters as dopant emitters gave emission maxima (λEL) from 446 nm to 474 nm with maximum external quantum efficiencies ranging from 4.2-11.2%.PostprintPeer reviewe

Ear, Nose and Throat tutorial

This resource is a practical video tutorial for medical students demonstrating equipment and techniques for examining the ear, nose and throat, as well as head and neck. Designed for use with fifth year medical students, this resource is useful for any medical student looking to improve their practical knowledge of ENT examination techniques

Synthesis and Characterisation of Bio-inspired Molecular Dyads

EThOS - Electronic Theses Online ServiceGBUnited Kingdo

An approach to hearing loss in children

Hearing loss in children is common and can be difficult to identify, especially in young children. There are a variety of pathologies involved in these children, which make the problem challenging to diagnose and manage. This update describes how new technologies have evolved over the last 10 years to assist in the early detection of hearing loss even in very young children. The article aims to highlight the role and assist the general practitioner in managing these children, so that effective intervention and rehabilitation can occur and the long-term benefit, namely that the children become functioning members of the hearing world, is achieved. This article is not a comprehensive review on the subject, but aims to remind the reader of risk factors and gives guidelines for the clinical assessment of a child with hearing loss. In addition, middle ear disease is also widespread and impacts significantly on the quality of life in this age group, and therefore these problems are also discussed for the sake of completeness. The Ivan Tom’s infant hearing screening programme based in Cape Town is presented as a pilot project for future universal neonatal screening projects in South Africa

Fast delayed emission in new pyridazine-based compounds

We thank the EPSRC for financial support (grants EP/P010482/1 and EP/R035164/1). We thank the EPSRC UK National Mass Spectrometry Facility at Swansea University for analytical services. G.C. acknowledges funding by the European Commission through a Marie Skłodowska Individual Fellowship (No. 799302). C.K. acknowledges support from the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (2017R1A6A3A03012331).Three novel donor-acceptor molecules comprising the underexplored pyridazine (Pydz) acceptor moiety have been synthesized and their structural, electrochemical and photophysical properties thoroughly characterized. Combining Pydz with two phenoxazine donor units linked via a phenyl bridge in a meta configuration ( dPXZMePydz ) leads to high reverse intersystem crossing rate krISC = 3.9 ∙ 106 s-1 and fast thermally activated delayed fluorescence (TADF) with <500 ns delayed emission lifetime. Efficient triplet harvesting via the TADF mechanism is demonstrated in OLEDs using dPXZMePydz as the emitter but does not occur for compounds bearing weaker donor units.Publisher PDFPeer reviewe

Novel Approach for Estimating Monthly Sunshine Duration Using Artificial Neural Networks: A Case Study

This work deals with the potential application of artificial neural networks to model sunshine duration in three cities in Algeria using ten input parameters. These latter are: year and month, longitude, latitude and altitude of the site, minimum, mean and maximum air temperature, wind speed and relative humidity. They were selected according to their availability in meteorological stations and based on the fact that they are considered as the most used parameters by researchers to model sunshine duration using artificial neural networks. Several network architectures were tested to choose the most accurate and simple scheme. The optimum number of layers and neurons was determined by trial and error method. The optimized network was obtained using Levenberg-Marquardt back-propagation algorithm, one hidden layer including 25 neurons with Tan-sigmoid transfer function. The model developed in this study has the ability to estimate sunshine duration with a mean absolute percentage error value equals to 2.015%, a percentage root mean square error of 2.741% and a determination coefficient of 0.9993 during test stage