Some teaching resources using R with illustrative examples exploring COVID ‐19 data

Exploring Dimensions and Quality of Teaching-Learning Interactions by Elementary Teachers during the Covid-19 Pandemic

Aim: the aim of the present study was to investigate the dimensions and quality of teaching-learning interactions by elementary teachers during the Covid-19 pandemic. Method: this was a qualitative study carried out using a phenomenological approach. The study population included all elementary school teachers in Abhar City (Iran). From this population, 12 individuals were selected as particip...

Fuzzy concepts and formal methods: some illustrative examples

It has been recognised that formal methods are useful as a modelling tool in requirements engineering. Speci cation languages such as Z permit the precise and unambiguous modelling of system properties and behaviour. However some system problems, particularly those drawn from the IS problem domain, may be di cult to model in crisp or precise terms. It may also be desirable that formal modelling...

Non-walrasian Equilibrium: Illustrative Examples

Data Mining: Some examples and some directions

Many successful attempts have been made to deduce information from data. Such data might come from an explicit body of knowledge, for example from a data base. Alternatively the data might be implicit, for example the behaviour of a system. The system may itself be physical such as a helicopter or a factory, or it may be conceptual such as a financial system. The extraction of information from ...

Foundations of time-dependent density functional theory: Some facts together with illustrative examples

The electron density n(r, t), which is the central tool of time-dependent density functional theory, is presently considered to be derivable from a one-body time-dependent potential V (r, t), via one-electron wave functions satisfying a timedependent Schrödinger equation. This is here related via a generalized equation of motion to a Dirac density matrix now involving t. Linear response theory ...