BACKGROUND Myocardial performance index (MPI) or Tei index is a Doppler-derived index of combined systolic and diastolic myocardial function, calculated as the sum of isovolumetric relaxation time (IRT) and isovolumetric contraction time (ICT) divided by the ejection time (ET). OBJECTIVE To evaluate the right and left ventricular systolic and diastolic function using MPI in children before an...

introduction: cardiac complications, including heart failure, are the most important secondary ones of the thalassemia major disease, which manifests itself in adolescence and early adulthood. appropriate, low cost diagnostic tools available as well as knowing its related factors are the most important components of therapy in these patients, given the importance of these complications, or by e...

When COVID-19 was declared a pandemic, the education sector soon faced unprecedented challenge of moving courses online within no time. The rapid implementation emergency remote teaching (ERT) led to students and teachers alike being thrown into an emotional terra incognita. This paper sets out explore if foreign language (LX) grit, learners’ passion perseverance for LX learning, is predictor e...

The present paper explores various arguments in favour of making the Text Encoding Initiative (TEI) guidelines an appropriate serialisation for ISO standard 24613:2008 (LMF, Lexical Mark-up Framework). It also identifies the issues that would have to be resolved in order to reach an appropriate implementation of these ideas, in particular in terms of informational coverage. We show how the cust...

The effect of a TEI enhancer mixed system consisting of triethanolamine (T), ethanol (E) and isopropyl myristate (IPM) on the skin permeation of acidic, basic and neutral drugs were evaluated in vitro using excised hairless rat skin. The binary enhancer system consisting of IPM and ethanol (El) produced marked improvement on the penetration of all the drugs tested. When T was added to the EI sy...

Quantifying fluxes of trace elements and their isotopes (TEIs) at the ocean's sediment-water boundary is a pre-eminent challenge to understand their role in the present, past and future ocean. There are multiple processes that drive the uptake and release of TEIs, and properties that determine their rates are unevenly distributed (e.g. sediment composition, redox conditions and (bio)physical dy...

The influence of obstructive sleep apnea syndrome (OSAS) on left ventricular function remains controversial. We examined the influence of OSAS on global left ventricular function using the myocardial performance index (Tei index) and plasma brain natriuretic peptide (BNP) level and investigated the effect of nasal continuous positive airway pressure (nCPAP) on these parameters. We obtained echo...

BACKGROUND Various conventional methods are used for functional evaluation and risk stratification in heart failure. A combined index of global myocardial performance called the Tei index has been described. The aim of this study was to evaluate the correlation of the Tei index with other conventional indices of systolic and diastolic function among Nigerians with hypertensive heart failure. ...

This paper formulates a proposal for standardising spoken language transcription, as practised inconversation analysis, sociolinguistics, dialectology and related fields, with the help of the TEIguidelines. Two areas relevant to standardisation are identified and discussed: first, the macrostructure of transcriptions, as embodied in the data models and file formats of transcription ...