The development of air transport affects elements of the aviation fuel market. In recent years an increase in both the number of passengers and the number of passenger operations has been observed. This phenomenon also concerns passengers and the number of operations served by Polish airports which translates into more and more fuel consumption in Poland. The authors of the study tried to approximate the characteristics of aviation fuels used in various types of aircrafts. The most important of them, from the perspective of the Polish aviation sector, include Jet. This type of fuel plays a key role in civil aviation. In the article, the enterprises operating in the analyzed sector were also reviewed. The empirical part of the article is devoted, in turn, to the analysis of changes in air passenger transport in Poland and changes in Jet fuel prices on the Polish fuel markets. The conducted research shows that the dynamics of changes in the number of passengers, as well as the number of passenger operations at Polish airports were characterized by an upward trend, and the increase in the number of passengers was driven not only by a larger number of available flights, but also by such factors as: increasing the capacity of aircraft and increasing the fill rate for seats. The authors have also attempted to examine the strength of dependence between the number of passengers deciding to use Polish airports and Jet fuel prices, which in recent years have undergone significant fluctuations. For this purpose, the value of Pearson’s linear correlation coefficient was used and the analyzed period covered the years 2011–2017. The data on passenger traffic used in the study came mainly from periodic reports prepared by the Civil Aviation Office (ULC).

Building a Strategic Battery Value Chain in Europe COM/2019/176 is a priority for EU policy. Europe’s current share of global cell production is only 3%, while Asia has already reached 85%. To ensure a competitive position and independence in the battery market, Europe must act quickly and comprehensively in the field of innovation, research and construction of the infrastructure needed for large-scale battery production. The recycling of used batteries can have a significant role in ensuring EU access to raw materials. In the coming years, a very rapid development of the battery and rechargable battery market is forecast throughout the EU. In the above context, the recycling of used batteries plays an important role not only because of their harmful content and environmental impact, or adverse impact on human health and life, but also the ability to recover many valuable secondary raw materials and combine them in the battery life cycle (Horizon 2010 Work Programme 2018–2020 (European Commission Decision C(2019) 4575 of 2 July 2019)). In Poland, more than 80% of used batteries are disposable batteries, which, together with municipal waste, end up in a landfill and pose a significant threat to the environment. This paper examines scenarios and directions for development of the battery recycling market in Poland based on the analysis of sources of financing, innovations as well as economic and legal changes across the EU and Poland concerning recycling of different types of batteries and rechargable batteries.

Cognitive Linguistics provides theoretical and methodological framework for a description of conceptual structure of signed languages. Articulation parameters of individual signs, such as hand-shape, location, motion, and orientation, all contribute to the creation of complex non-literal meanings. Being based on metaphors, metonymies, or metonymies-in-metaphor, the signs reflect various degrees of visual motivation or iconicity. American Sign Language (henceforth ASL) and British Sign Language (henceforth BSL), two unrelated languages, employ diverse strategies of conceptualisation to express the same concepts. These strategies range from identical, e.g. metaphor vs. metaphor, to different, e.g. metaphor vs. metonymy, with many intermediate configurations possible. The paper compares selected ASL and BSL signs related to various areas of experience. Some of the signs are also contrasted with their counterparts in other signed languages.

False or “mad” jealousy is the central theme in William Shakespeare’s Othello and The Winter’s Tale. Both Othello and Leontes, the protagonists of the plays, seem to have great diffi culties distinguishing between the surface of things (or what they see) and the truth. Both can be classifi ed as tragic fi gures as they both commit an error of judgment – due to a fl aw in their nature (be it self-love or suspiciousness) they misjudge a key situation and are easily led astray. In fact, dramatic irony, which is evidently present in the plays, can be exemplified by a pragmatic analysis of these two texts. It is interesting to observe that both characters are focused on saving face in front of others, not only to avoid criticism by the society (Leontes) but also to be each able to cope with their wife’s supposed betrayal (Othello). Pragmatics helps establish the causes of the characters’ tragedy: Othello’s false jealousy is conceived by Iago’s infelicitous speech acts and develops only because Othello is unable to grasp Iago’s real intention in communication. On the other hand, Leontes in his obsession is looking for hidden meanings in things just to prove that he is right; his verbal behaviour abounds in examples of self-deceit. The aim of this article is to defi ne jealousy in pragmatic terms, using the speech act theory, felicity conditions, conceptual metaphor, and face.

This paper thoroughly examines the gender patterns of religious activity within the Vietnamese – the largest non-European migrant community in Poland. Basing on the result from anthropological field-work which I conducted in two pagodas currently operating in the suburbs of Warsaw I analyse this issue in the light of traditional gender patterns of religious life in Vietnam, as well as in the context of the politicisation of spiritual life under communist rule. The results of my research prove that whether a religious institution will become a ‘women’s sphere’ or will remain under the influence of male actors depends to a great extent on its political emplacement and relations with formal institutions of the Viet-namese state.

This article deals with the issue of home-country receptivity towards social remittances from the pro-fessional diaspora. Social remittances from the highly skilled depend on a favourable context for knowledge and skills transfer in their home countries, a context that could be summarised by the term ‘country receptivity’. This article is based on the case of Lithuania. The data comes from a series of semi-structured interviews with members of the skilled diaspora and representatives of institutions that are involved in programmes targeted at the diaspora. The analysis reveals several groups of obstacles to successful knowledge and skills transfer that may be understood as issues of country receptivity: mistrust of government by diaspora members, expressed as a belief that it is not interested in results and thus involvement of the diaspora, but rather in pursuing particular political objectives; lack of openness towards other experiences (unwillingness of institutions at different levels and in various fields to open up to new opinions, approaches and experiences brought by Lithuanians from abroad); bureaucratic and institutional impediments (inability of institutions to adapt their procedures in the interests of co-operation; slowness and ineffectiveness when dealing with requests or reacting to initiatives from the diaspora); and a perceived negative opinion (unwelcoming attitude) in society towards Lithuanians from abroad. The interviews also provide some tentative evidence of a ‘feedback loop’, through which the involvement of the diaspora causes changes in the home-country institutions. In the discussion part of the article, possible causes and implications of these obstacles are considered.

Large venues and auditoriums are commonly associated with their astounding architecture. Their acoustic quality is an essential factor in its qualification as a great and functional, or a badly designed place. However, acoustics is often overlooked during the design stage of a building due to the complexity and high cost of the measurements involved. For this reason, it is important to explore more accessible ways to implement acoustics evaluations. The aim of this work is to compare typical experimental measuring methods and the use of mobile devices to assess the acoustic quality of a room. These measurements are contrasted with the software simulation of the same acoustical space. The results show that the mobile system can be used for professional measurements with low restrictions in the frequency range of interest of this study (90 Hz to 4000 Hz).

It has been shown in the present paper that exploitation of the experimental potential of a photoacoustic technique can provide information on a type of intermolecular interactions in aqueous mixtures containing organic liquids, when the basic parameters of these mixtures, such as density, ρ, specific heat, cp, or thermal conductivity, λ, are unknown. Earlier investigations of concentration dependence of effusivity in different aqueous solutions of organic liquids demonstrated that the photoacoustics method is a sensitive tool to identify hydrophobic properties of such liquids. In our experiment this suggestion was exploited for a solution of methanol which is known to display much weaker hydrophobicity than other alcohols.

It was confirmed that the location of extreme deviations from linearity for the thermal effusivity, Δe, agrees well with that of characteristic points for the isentropic compressibility coefficient, κS, and the excess molar volume, V_m^E, as a function of the concentration.

Along the paper the new method called Invertebrate Bankfull Assessment method (IBA method) of determination of bankfull discharge is presented. The investigation of bankfull discharge using IBA were performed within one Polish Carpathian stream in the mountain region: the Ochotnica Stream. As an index of bankfull the existence of certain species of invertebrates was used which are present and resistant to specific water discharge conditions. The borders within a cross section of the mountain stream with a gravel bed were defined where characteristic invertebrates are present which are recognized as bankfull borders. Finally three invertebrates benches (IB-ms) were recognized which are characterized by very specific invertebrate species. Bankfull discharge was calculated up to this IB-ms and corelated using Canonical Correspondence Analysis with other values of bankfull calculated for a cross section using different bankfull.

This work aims to evaluate the treated wastewater from the activated sludge treatment plant in the City of Sidi Bel Ab-bes (North-Western Algeria) which is required for reuse in irrigation. The control of irrigated areas downstream is done based on a pedological study. Physico-chemical analysis such as (pH, BOD5, COD and SS) indicate results in Algerian and international standards required by the WHO. The Sodium Adsorption Ratio and Electrical Conductivity values of the treated wastewater belong to the C3-S1 class. The treated wastewater has a fairly good microbiological quality that meets Algerian standards. The helminth eggs are practically absent. The concentrations of heavy metals are much lower than the limits prescribed in the Algerian decrees. Therefore, the overall processing plant efficiency is satisfactory and has the char-acteristics of a good treated water quality for reuse in the field of irrigation while protecting the environment. The pedolo-gical study of the soil samples shows that the most dominant fraction is undeveloped calcimagnetic. The planned irrigation plain covers an area of about two thousand hectares. Depending on the crops to irrigate; the development and nature of the necessary or recommended improvements, the proposed irrigation perimeter could be classified into five categories in which only three categories are irrigable. Water projects have been proposed to ensure the irrigation of three subdivided sectors.