Epameinondas A. Diamantopoulos

Democritus University of Thrace | DUTH · Department of Electrical and Computer Engineering

Background There is a knowledge gap in whether psychopathology aspects can shape and mark the social representations about health and lifestyle. In this work, we investigated the association of psychopathology and shame with the centrality of the words describing eight common social representations of health and lifestyle. Methods A convenience sa...

Purpose: To explore the relationship between shame, ageing, physical disease, and quality of life in Greek older people. Design and methods: A cross-sectional design using a stratified random cluster sample of older adults from Open Care Centers for the Elderly in the region of Epirus, Greece. Data were collected using (a) the Short Form-36 Heal...

Background: There are relatively limited studies exploring the relationship between social representations and language although language is a system that lives in the symbolic universe of the people, where every word has the dual nature of both signified and signifier. Aim: This study aimed to identify and investigate the common social representat...

In the present study, Differential Scanning Calorimetry (DSC) was used as the sole analytical tool for the determination of the varietal and geographical origin of Greek extra virgin olive oil (EVOO). EVOO samples were of four different monovarietal categories and originated from four geographical regions of Greece. Thermal properties of EVOOs were...

We consider an integral operator $\mathcal{I}$, special instances of which was studied in various contexts. Using an appropriate transformation we write this operator in terms of weighted composition operators. Then, we provide a boundedness criterion on weighted Dirichlet spaces, and we apply this result in order to prove that certain integral ope...

We provide norm estimates for a particular integral operator on Hardy and Bergman spaces of analytic functions on the unit disc.

The exhaust CO2 emissions on the New European Driving Cycle and its urban and extra-urban part of the new passenger cars of European Union are correlated with four engine and vehicle characteristics: vehicle weight, engine displacement, engine max. power and engine max. specific power. Weight has the best correlations in the case of Diesel passenge...

. Universal Laurent series where the universal approximation is valid on the boundary of the multiple connected open Ω appears for the first time in [2]. We show that it is possible to demand universal approximation only to a part of the boundary while on the remaining part the universal function can be smooth.

Universal Taylor series where the universal approximation is valid on the boundary of the open unit disc can not be smooth or bounded. If the universal approximation is not requested to be valid on the boundary, then it is well known that the universal function can be bounded and smooth. We extend this result to unbounded open sets Ω, such that {∞}...

Universal Taylor series where the universal approximation is valid on the boundary of the open unit disc can not be smooth or bounded. If the universal approximation is not requested to be valid on the boundary, then it is well known that the universal function can be bounded.

The Hilbert matrix acts on Bergman spaces by multiplication on Taylor coefficients. We find an upper bound for the norm of the induced operator.

Hankel matrices acts on Dirichlet spaces by multiplication on Taylor coefficients. We provide necessary and sufficient conditions for that operators to be bounded, compact or Hilbert -Schmidt on that spaces.

The Hilbert matrix acts on Hardy spaces by multiplication with Taylor coefficients. We find an upper bound for the norm of the induced operator.