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Autoimmune congenital heart block and primary Sjögren's syndrome : characterisation and outcomes of 49 cases

OBJECTIVES: To characterise autoimmune congenital heart block (CHB) associated with a maternal diagnosis of primary Sjögren's syndrome (pSS) confirmed either before, concomitant or after the first pregnancy complicated with CHB.METHODS: The following inclusion criteria were applied: (i) Mothers with positive Ro/La autoantibodies detected previously or at the time of diagnosis of the first case of

Temperature Impact on the Internal Resistance of a Polymer Electrolyte Fuel Cell Considering the Electrochemical Impedance Spectroscopy Diagnosis

A polymer electrolyte fuel cell (PEFC) is an electrochemical device that converts the chemical energy presents in the hydrogen into electricity and heat having as by product only water. The energy conversion process is carried out in a clean and noiseless manner. Depending on the applications, a PEFC works at different operating temperature. In this study, the internal resistance of a PEFC is eval

Walking in the historic neighbourhoods of Beijing : walking as an embodied encounter with heritage and urban developments

This article explores walking both as a methodological device, paying close attention to the ethnographer’s own positionality and experiences, and as a form of embodied and emplaced experience of and with heritage sites and urban changes. Walking is an important aspect of how people engage with and experience heritage that draws attention to its emplaced, performative and transformative qualities.

Smart bikes: Gradual update of IoT systems

Automated consistent software updating is challenging for distributed internet-of-things applications. We are developing a solution based on allowing several versions of the software to coexist on the same device, so that new and old software can be gradually phased in and out. We demonstrate our solution using a smart-city application for preventing thefts of bike batteries.

Photonic materials for high-temperature applications : Synthesis and characterization by X-ray ptychographic tomography

Photonic materials for high-temperature applications need to withstand temperatures usually higher than 1000 °C, whilst keeping their function. When exposed to high temperatures, such nanostructured materials are prone to detrimental morphological changes, however the structure evolution pathway of photonic materials and its correlation with the loss of material's function is not yet fully underst

Between East and West: Cassian the Roman in Greek and Latin

Two of Cassian’s works, the Institutiones and the Collationes, are preserved in both Latin and Greek, and almost all scholars have taken it for granted that he wrote exclusively in Latin. This paper examines two passages from Cassian’s writings, one from the Institutiones (which has a parallel in an Evagrian florilegium) and the other from the Collationes. Arguing against the prevailing view, the Two of Cassian’s works, the Institutiones and the Collationes, are preserved in both Latin and Greek, and almost all scholars have taken it for granted that he wrote exclusively in Latin. This paper examines two passages from Cassian’s writings, one from the Institutiones (which has a parallel in an Evagrian florilegium) and the other from the Collationes. Arguing against the prevailing view, the

Parents’ reported experiences when having a child with cataract—important aspects of self-management obtained from the paediatric cataract register (PECARE)

Parents are a crucial part in the care of children with pediatric cataract. The aim of this study was to explore and explain sense of coherence, family self-efficacy, perceived social support, fatigue and parent reported experiences (PREM), in order to improve clinical care. Questionnaires were sent to the parents of children registered in the Swedish national Paediatric Cataract Register, PECARE,

Knowledge-carrying objects in learning situations

ABSTRACTThis study aims to explore the scope of ‘knowledge-carrying’ objects in learning situations. The study is based on a qualitative content analysis of a design project conducted in a science centre for children aged 7-10 years, learning about polymers and circularity. The design project is based on research through design and has been an iterative process where design experiments and observaThis study aims to explore the scope of ‘knowledge-carrying’ objects in learning situations. The studyis based on a qualitative content analysis of a design project conducted in a science centre for childrenaged 7-10 years, learning about polymers and circularity. The design project is based on researchthrough design and has been an iterative process where design experiments and observations werei

Measurements of microwave scattering by ultrasound in air at oblique incidence

Scattering of electromagnetic waves against acoustic waves has been studied in acousto-optics and radio acoustic sounding of the atmosphere, among others. Strong interaction requires phase matching, which occurs at two angles between waves. These depend on the wavelength ratio. The scattered electromagnetic wave is frequency shifted by the acoustic frequency, either up or down depending on the ang

Effect of Radius on Crystal Structure Selection in III-V Nanowire Growth

The radius of III-V nanowires is known to have an effect on the resulting crystal structure during particle-assisted growth; however, the causes behind this effect remain under debate. In this work, we use stochastic simulations of nanowire growth to evaluate how the radius (R) affects the growth dynamics and how this in turn affects the crystal structure selection. This is due to the geometry of

Using augmented reality to train flow patterns for pilot students - An explorative study

Today, just as in the early days of flying, much emphasis is put on the pilot student’s flight training before flying a real commercial aircraft. In the early stages of a pilot student’s education, they must, for example, learn different operating procedures known as flow patterns using very basic tools, such as exhaustive manuals and a so-called paper tiger. In this paper, we present a first desi

Long-term performance measurement and analysis of a small-scale ground source heat pump system

Recent data suggest that heat pumps, despite having the potential to cover over 90% of the global space and water heating demands, only provide less than 5% of global heating. Heat pumps, in general, and ground source heat pumps, specifically, offer significant potential for energy savings and carbon emissions reduction in buildings. The realization of these potential benefits, however, requires p

The effects of severe plastic deformation and/or thermal treatment on the mechanical properties of biodegradable mg-alloys

In this study, five MgZnCa alloys with low alloy content and high biocorrosion resistance were investigated during thermomechanical processing. As documented by microhardness and tensile tests, high pressure torsion (HPT)-processing and subsequent heat treatments led to strength increases of up to 250%; as much as about 1/3 of this increase was due to the heat treatment. Microstructural analyses b

Usefulness of High Sensitivity Troponin T to Predict Long-Term Left Ventricular Dysfunction After ST-Elevation Myocardial Infarction

Guidelines recommend the use of transthoracic echocardiography (TTE) and clinical scores to risk stratify patients after ST-elevation myocardial infarction (STEMI). High sensitivity troponin T (hs-cTnT) is predictive of outcome after STEMI but the predictive value of hs-cTnT relative to other risk assessment tools has not been established. We aimed to compare the predictive value of hs-cTnT to oth

Probing the Z = 6 spin-orbit shell gap with (p,2p) quasi-free scattering reactions

The evolution of the traditional nuclear magic numbers away from the valley of stability is an active field of research. Experimental efforts focus on providing key spectroscopic information that will shed light into the structure of exotic nuclei and understanding the driving mechanism behind the shell evolution. In this work, we investigate the Z=6 spin-orbit shell gap towards the neutron dripli

Understanding Library Users via Surveys and Other Methods—Best Practices for Evidence-Based Library Development

A survey was performed over all university libraries within the Association of European Research Libraries (LIBER) in order to study how different methods of user input are utilized. Libraries using analysis based on explorative methods - such as UX and process mapping - report significantly increased user knowledge and perceived well-function. Over 3/4 of the respondents reported performing generA survey was performed over all university libraries within the Association of European Research Libraries (LIBER) in order to study how different methods of user input are utilized. Libraries using analysis based on explorative methods—such as UX and process mapping—report significantly increased user knowledge and perceived well-function. Over three-fourths of the respondents reported performing

COVID-19 : guidance on palliative care from a European Respiratory Society international task force

Background: Many people are dying from coronavirus disease 2019 (COVID-19), but consensus guidance on palliative care in COVID-19 is lacking. This new life-threatening disease has put healthcare systems under pressure, with the increased need of palliative care provided to many patients by clinicians who have limited prior experience in this field. Therefore, we aimed to make consensus recommendat

Metastable precursor structures in hydrogen-infused super duplex stainless steel microstructure – An operando diffraction experiment

We report the evolution of metastable precursor structures during hydrogen infusion in the near-surface region of a super duplex stainless steel. Grazing-incidence x-ray diffraction was employed to monitor, operando, the lattice degradation of the austenite and ferrite phases. Electrochemical hydrogen charging resulted in the splitting of the diffraction peaks of the austenite phase, suggesting th