Harmonic correction in power supplies feeding non-linear loads

This paper focuses on the design of an electronic circuit which can be used in conjunction with the power supplies used at the input of non-linear loads (computers, TV sets, etc.) in order to filter out the input current harmonics in such loads. The electronic circuit will fill the gaps of the distorted current waveform so that it becomes sinusoidal and also in phase with the mains supply. In this paper different configurations of the proposed electronic circuit are covered (depending on the location with respect to the non-linear load). An optimization algorithm is carried out in order to find the best location, minimum device rating for different type of loads. The proposed circuit monitors the input current, output voltage and power rating of the power supply. The circuit will then decide whether to filter the input current harmonics or the output voltage harmonics. The circuit will also optimize the best switching frequency for the required load so that the power supply operates at the maximum possible efficiency

Twice-Exceptional Students of Mathematics in England: What Do the Teachers Know?

Although they have the potential to excel, twice-exceptional (2e) students of mathematics do not usually have this opportunity as their special educational abilities, and special needs, are often misdiagnosed or “missed” diagnosed in schools due to the teachers’ lack of knowledge. The study explored this issue using an electronic survey for primary school teachers in four local authorities in England. It was planned as a pilot study to gather insights from a small number of schools aiming to identify areas for further study and larger-scale research. When comparing responses from teachers with gifted-related training and those without, the study found some knowledge of specific types of 2e students among both groups of teachers, but no significant difference between them. This raised concerns about the effectiveness of the training, as well as identifying areas that need further and more systematic research

A Federation of Language Archives Enabling Future eHumanities Scenarios

This paper describes the need for new infrastructures for future eScience scenarios in the humanities. Three projects working on different aspects of these infrastructures are examined in detail. The first project is trying to achieve a federation of archives, developing an integration layer at the level of localization, access to and referring to an archive’s raw data objects. The other two try to achieve interoperability at the level of semantic interpretation of linguistic data-types and tagging systems. The project’s different approaches to this problem show the trade-of between flexibility and the user’s workload. All three approaches give an impression about the necessary steps to come to an eHumanities scenario

Episcleritis Related to Drug-Induced Lupus Erythematosus following Infliximab Therapy: A Case Report

Drug-induced lupus erythematosus is defined as a lupus-like syndrome temporally related to continuous drug exposure which resolves after discontinuation of the offending drug. Herein, we describe a patient with distinct clinical manifestations of anti-TNF-associated DILE related to infliximab therapy. The patient exhibited clinical and laboratory findings of lupus-like illnesses as well as ocular disorders, such as episcleritis. The main message is that the symptoms of DILE should not be overlooked, although sometimes other systematic conditions may underlie them. As a result, it is very important for the clinicians to evaluate the symptoms of DILE and manage appropriately these cases

Neuroscience and CSR : using EEG for assessing the effectiveness of branded videos related to environmental issues

The majority of studies evaluating the effectiveness of branded CSR campaigns are concentrated and base their conclusions on data collection through self-reporting questionnaires. Although such studies provide insights for evaluating the effectiveness of CSR communication methods, analysing the message that is communicated, the communication channel used and the explicit brain responses of those for whom the message is intended, they lack the ability to fully encapsulate the problem of communicating environmental messages by not taking into consideration what the recipients’ implicit brain reactions are presenting. Therefore, this study aims to investigate the effectiveness of CSR video communications relating to environmental issues through the lens of the recipients’ implicit self, by employing neuroscience-based assessments. For the examination of implicit brain perception, an electroencephalogram (EEG) was used, and the collected data was analysed through three indicators identified as the most influential indicators on human behaviour. These three indicators are emotional valence, the level of brain engagement and cognitive load. The study is conducted on individuals from the millennial generation in Thessaloniki, Greece, whose implicit brain responses to seven branded commercial videos are recorded. The seven videos were a part of CSR campaigns addressing environmental issues. Simultaneously, the self-reporting results from the participants were gathered for a comparison between the explicit and implicit brain responses. One of the key findings of the study is that the explicit and implicit brain responses differ to the extent that the CSR video communications’ brain friendliness has to be taken into account in the future, to ensure success. The results of the study provide an insight for the future creation process, conceptualisation, design and content of the effective CSR communication, in regard to environmental issues

Torsade de Pointes and Persistent QTc Prolongation after Intravenous Amiodarone

We report a case of torsade de pointes after intravenous amiodarone and concurrent hypokalemia. Despite treatment cessation and correction of electrolyte abnormalities, excessive QTc prolongation was noted, which persisted for 14 days. This prolonged course for QTc normalization may be attributed to the high rate of amiodarone loading and concurrent electrolyte disturbances coupled with possible underlying individual variability in pharmacokinetics

Progress-Oriented Workshops for Doctoral Well-being: Evidence From a Two-Country Design-Based Research

This paper explores an intervention approach (in the form of workshops) focusing on doctoral progress, to address the problems of low emotional well-being experienced by many doctoral candidates. Doctoral education suffers from two severe overlapping problems: high dropout rates and widespread low emotional well-being (e.g., depression or anxiety symptoms). Yet, there are few interventional approaches specifically designed to address them in the doctoral student population. Among structural, psychosocial, and demographic factors influencing these problems, the self-perception of progress has emerged recently as a crucial motivational factor in doctoral persistence. This paper reports on an iterative design-based research study of workshop interventions to foster such perception of progress in doctoral students? everyday practice. We gathered mixed data over four iterations, with a total of 82 doctoral students from multiple disciplines in Spain and Estonia. An approach to preventive interventions that combines research-backed education about mental health and productivity, peer sharing and discussion of experiences, and indicators of progress, as well as self-tracking, analysis, and reflection upon everyday evidence of their own progress. The paper provides initial evidence of the effectiveness of the proposed interventions, across two institutions in two different countries. Further, our data confirms emergent research on the relationships among progress, emotional well-being, and dropout ideation in two new contexts. Finally, the paper also distills design knowledge about doctoral interventions that focus on progress, relevant for doctoral trainers, institutions, and researchers.This research has received funding from the European Union’s Horizon 2020 research and innova-tion programme under grant agreement No. 669074 (CEITER). It has also received funding from the European Union’s Erasmus Plus programme, grant agreement 2019-1-NO01-KA203-060280 (DE-TEL). The Universidad de Valladolid co-authors acknowledge funding of the European Regional Development Fund and the National Research Agency of the Spanish Ministry of Science, Innova-tion, and Universities, under project grant TIN2017-85179-C3-2-R (SmartLET), and PID2020-112584RB-C32, the European Regional Development Fund, and the Regional Government of Cas-tile and Leon, under project grant VA257P18