This article contains an analysis of the issues of cultural transfer during the First World War in the areas occupied by the Central Powers and the territories affected by the war. The German propaganda institutions that emerged after August 1914 functioned, somewhat contrary to initial intentions, as a network for transnational exchanges and were used by publishers, translators, writers, and other actors in the cultural sphere of the time. On the basis of archival research, the author advances several ideas on, respectively, culturalmobility in the years 1914–1918, cultural propaganda in the period of the First World War as the prehistory (and not the antithesis) of later cultural policy, and the role of cultural propaganda/cultural policy in research into literary transfers.
Present study examines nonfinancial support granted for older people in Poland and other European countries in order to understand the relationships between family structures and that support and to diagnose the challenges that the Polish population may face in this respect in the nearest future. The analysis is based on the data from the Survey on Health, Aging and Retirement in Europe (SHARE). The study attempts also to answer the question about the need for informal support in future generations of older Poles. The study is focused on the population of individuals aged at least 50+, because they will decide about the situation of older people in the near future. The author considers, in addition to personal care, help in running a household and help with paper work. The most frequently received type of support is the help in running a household, received primarily from neighbors and family members, which reduces the need for institutional care. Personal care is provided to the minority of the examined population, even in the highest age group, and, apart from household members, it concerns usually biological children.
The establishment of the Research Network Lukasiewicz (RNL) is aimed at strengthening the research potential and knowledge transfer from research institutes to enterprises. The article presents the results of the research potential analysis of 38 research institutes that are to form the RNL, based on data on scientific publications in 2013–2016. The number of publications of RNL institutes was similar to the number of publications of TNO and VTT institutes but smaller than that of Fraunhofer institutes. The publications of RNL institutes had lower values of indicators of international collaboration and collaboration with business as well as lower values of citation indices. Co-authors of RNL publications were mainly affiliated with national scientific units, whereas co-authorship with Fraunhofer, TNO and VTT institutes was marginal. The article also outlines the limitations and challenges of the adopted research method and future research orientations in this area.
This article is about the Brazilian aid programme called Programa Bolsa Família. The programme has generated the interest of international institutions, the media, and the academic world on account of its scale, which provides an opportunity for fundamental social reform; and its measurable success, which is clearly visible in the poverty statistics; and above all, on account of participation being dependent on the fulfillment of specific requirements in the field of education, health, and social care. The author undertakes to go beyond an analysis based on statistics and to look at the functioning of the programme from the level of the participants. On the basis of his own research—that is, freely-conducted interviews with the inhabitants of favelas and rural settlements—he describes what lies behind the terminology and poverty statistics. His analysis of the situation of over a dozen participants in the programme makes it possible to see the immediate improvement of their material situation; the author claims, however, that a complete diagnosis will be possible only after the passage of a dozen or more years, by comparing the human capital (and labor market position) of the children of families taking part in the programme with the socio-economic position of those families today.
This paper investigates the phenomenon of language transfer at the initial state of third language acquisition by adult Polish learners of English (L2) and German (L3). First, the controversy between two conflicting theories of language acquisition, behaviorism and nativism, is discussed with regard to cross-linguistic interactions. Second, some influential models of third language acquisition are presented. The participants’ written production data from 122 essays was analyzed and interpreted in terms of language transfer. Evidence for both L1 and L2 transfer could be found. The results show, however, that the influence of L2 is more robust and primarily affects the lexicon. Finally, the present paper emphasizes the fact that language transfer should not be perceived as a source of errors, but rather as an inevitable result of the third language acquisition process.
Thermodynamics deals with irreversible transformations of substances. Every thermodynamic property of a substance, as a function of two parameters describing its state, can be illustrated as a simply connected manifold. The term manifold stands for the Methods of Geometrical Representation of Thermodynamic Properties of Substances by Means of Surfaces. Generally, every transformation of a substance changes its energy (or enthalpy) by heat transfer and work done on it. All such changes (transformations) are considered to be irreversible and can be described using appropriate manifolds. Studies show that every transformation is associated with the degradation of energy. Such relations (between heat, work and other forms of energy or enthalpy) can be described by the Pfaff formulas and their integrations.
This article discusses the issue of irreversible energy degradation in heat transfer between two fluids. Irreversible heat transfer between separated fluids most often occurs through surface heat exchangers. All such processes are determined by convective heat transfer in thermal boundary layers and conduction through the wall. Consequently, entropy changes of fluids in heat and mass transfer can be observed in these layers. While the entropy rate of the heating fluid is negative and that of the heated medium is positive, the sum of entropy changes of all substances involved in the heat transfer process is always positive. These sums, known as entropy increase (entropy generation), can be interpreted as the measure of irreversible degradation of energy in heat transfer processes. The consequence of this degradation is that an arbitrary engine powered by the degraded (lower-temperature) heat flux will operate at a lower efficiency. The significance of this discussion relates especially to cases in power plants and cooling systems where surface heat exchangers are used. In the discussion proposed is the entropy increase as a criterion of irreversible energy degradation in heat transfer. Such introduced measure of effectiveness leads to an analysis of local overall heat transfer coefficient optimization on the cone-shaped manifold.
The shell and coil heat exchangers are commonly used in heating, ventilation, nuclear industry, process plant, heat recovery and air conditioning systems. This type of recuperators benefits from simple construction, the low value of pressure drops and high heat transfer. In helical coil, centrifugal force is acting on the moving fluid due to the curvature of the tube results in the development. It has been long recognized that the heat transfer in the helical tube is much better than in the straight ones because of the occurrence of secondary flow in planes normal to the main flow nside the helical structure. Helical tubes show good performance in heat transfer enhancement, while the uniform curvature of spiral structure is inconvenient in pipe installation in heat exchangers. Authors have presented their own construction of shell and tube heat exchanger with intensified heat transfer. The purpose of this article is to assess the influence of the surface modification over the performance coefficient and effectiveness. The experiments have been performed for the steady-state heat transfer. Experimental data points were gathered for both laminar and turbulent flow, both for co current- and countercurrent flow arrangement. To find optimal heat transfer intensification on the shell-side authors applied the number of transfer units analysis.
The main objective of these experiments was to study the oxygen mass transfer rate through the volumetric mass transfer coefficient (kLa) for an experimental set-up equipped with a rotating magnetic field (RMF) generator and various liquids. The experimental results indicated that kLa increased along the magnetic strength and the superficial gas velocity. Mathematical correlations defining the influence of the considered factors on kLa were proposed.
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