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Departing from the assumption that discourse is both socially constituted and constitutive, and that social reality is co-constructed by the institutions of mass communication, this chapter takes under scrutiny media representation of the recent refugee crisis in Europe. The objective behind it is to maximise the validity of the Media Proximization Approach (MPA), drawing on the insights from Critical Discourse Studies, cognitive linguistics and corpus linguistics, in explicating how the media can potentially impact on the salience of issues and thus on public perception of problems and threats along with measures to be taken to deal with them. Examining the data from Poland, a European Union member state from Central Europe, criticised for its anti-refugee stance and refusal to accept the assigned quotas of migrants, and, importantly, the country ‘experiencing’ migrant crisis without refugees, we look at the role of word co-occurrence patterns in the discursive representation of refugees and immigrants in Rzeczpospolita daily and Niezależna.pl, the Polish right-wing press. The analysis, of both quantitative and qualitative nature, focuses on lexical associations of two nouns, uchodźca ‘refugee’ and imigrant ‘immigrant’, and their role as epistemic, axiological and emotional proximization triggers in the process of mediated construction of crisis and European security.

The purpose of this paper is to simulate with in-depth reconstruction of existing geometry a process of cooling of the aircraft engine in pusher configuration, which is more problematic than usually used, tractor configuration. Moreover, a complex thermal and fluid flow analysis is necessary to verify that an adequate cooling is ensured and that temperatures in the engine nacelle are maintained within the operating limits.

Methodology used in this research is based on computational fluid dynamics tools to model adequately the internal and the external flow, to find the state of cooling system and research the results of baffles modification inside the engine cover. Additionally, two types of the cover with different sizes of inlets and outlets are tested.

The results showed the influence of baffles modifications and changes in inlets and outlet sizes on the mass flow rate and temperature distributions inside the engine nacelle. The best configuration of air inlets and outlets was determined.

The method used in the research is the safest method in testing of such cases, provided the proper approach in modeling is taken. The collaboration of internal and external flow is crucial and should not be replaced with assumed flow rate through inlet and outlet area. The obtained results will help in future studies on cooling systems of engines in pusher configuration.

The work presents original results obtained by the authors during a complex fluid flow and heat transmission analysis and is a part of the design project of the OSA patrol aircraft.

The aim of this paper was to verify applicability of graphene-based sensors for voltammetric and amperometric measurements of low-concentration compounds in biological fluids.

Using the screen printing method, electrochemical sensors were manufactured on polymethylmetacrylate foil using a paste consisting of organic solvents and graphene nanopetals. As the model of a biological fluid tear film was chosen, the compound chosen as the analyte was H₂O₂, which is produced in oxidation of biological compounds. Tear film analog was prepared, in which, the measurements were carried out in a wide range of concentrations to determine the oxidation potential of H₂O₂ through square-wave voltammetry. The second series of amperometric measurements was carried out for concentrations between 0 and 30 μM/L, which is the lower range of physiological glucose concentration in tear films.

The sensors presented linearity for concentrations from 0 to 3.5 per cent. Mean linear correlation coefficient between the peak current and the concentration for the examined sensors was 0.9764. Mean sensitivity was 434.4 mA·M−1·L−1.

Results indicate a need for optimization of the sensors ' performance. Main parameters to be improved are surface area of electrodes and purity of the graphene layer, as well as uniformity of the manufacturing process to improve accuracy and repeatability of measurements.

Technology and materials used present an opportunity for creating low-cost, miniaturized and biocompatible sensors to be used in medical monitoring.

Printed electronics technology described was not investigated previously in the field of biological sensors and could contribute to the solving of vital medicine problems.