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Abstract

W artykule podjęto kwestię nierówności majątkowych i dochodowych oraz mechanizmów ich powstawania i powiększania. Zasadnicza teza tekstu zakłada, że nierówności te są przede wszystkim skutkiem różnic w zdolności do akumulacji kapitału materialnego, w zależności od osiąganych dochodów i struktury potrzeb. Dla zweryfikowania tezy został zbudowany model teoretyczny akumulacji kapitału materialnego, oparty na relacjach między dochodami a uwarunkowanymi społecznie i kulturowo potrzebami, a następnie zastosowany do analizy zdolności do akumulacji kapitału w różnych grupach w warunkach gospodarki późnego kapitalizmu, ze szczególnym odniesieniem do kontekstu polskiego. W rezultacie wyodrębnione zostały cztery sfery dochodowe, charakteryzujące się różną zdolnością do akumulacji. Stwierdzono także, że podstawowy czynnik wyznaczający zdolność do akumulacji kapitału materialnego ma charakter strukturalny i jest nim miejsce w strukturze społecznej, wchodzące w interakcje z czynnikami mającymi charakter kulturowy (np. wzorce konsumpcyjne), ekonomiczny (np. stopa zwrotu z kapitału), instytucjonalny (np. obciążenia fiskalne) czy strukturalny (np. wielkość społecznych nierówności).

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Authors and Affiliations

Wiktor Szewczak
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Abstract

The article presents a particular mechanism of political decision making in contemporary democratic systems. It is called here ‘ad hoc democracy’. This notion refers to the phenomenon of making political decisions (that are general and abstract) on the basis of premises that are individual and situational. After defining ad hoc democracy, the author reconstructs a typical scenario of the phenomenon, demonstrates selected examples of ad hoc democracy and discusses its main consequences. The analysis of ad hoc democracy construction process follows. The main cause of ad hoc democracy is defined as the interference of internally inconsistent logic of actions taken by three types of actors in political sphere: media, society (treated as an audience) and political decision-makers. In the last part of the article it is hypothesized that the systems experiencing rapid social changes and democratization processes are particularly prone to the emergence of ad hoc democracy. The hypothesis is justifi ed and substantiated by referring to an example of Poland during the systemic transformation process.

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Authors and Affiliations

Wiktor Szewczak
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Abstract

The subject of this article concerns the growing issue of implementing the concept of social responsibility in the activities of integrated energy entities. This work includes the performance of a budgetary analysis of the national leading company, in terms of expenses associated with corporate social responsibility (CSR). The article presents the analysis of source literature, as well as identifies stakeholder activities. The introduction includes an explanation of the concept of CSR, its global approach along with the justification for the need to implement the concept of CSR in the strategy of industry entities. The following were used, among others, to perform the research: elements of financial and non-financial reporting, i.e. reports of a vertically integrated energy company – Capital Group Polska Grupa Energetyczna SA, over the years 2013–2017. The data obtained from distributed sources were used. The company’s activities in social and environmental directions were identified, and the stakeholder groups of these initiatives were determined. The main purpose of this article was to estimate the level of expenditure associated with CSR in the context of the company’s general budget. The article emphasizes the role of the PGE Foundation as a recognizable point of company activity in the scope of CSR (the participation of individual group companies in financing the foundation was presented). The analysis of CSR expenditure included: the amount of taxes paid, costs of employee benefits and assets of the social services fund, and environmental costs.

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Authors and Affiliations

Justyna Woźniak
Justyna Szewczak
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Abstract

Indoor noise can greatly affect the health and comfort of users, so the significance of the right assessment of the compliance with the requirements is obvious. But noise level testing is carried out using different methods, which may not ensure consistency in assessments.
The paper presents the influence of test methods on measurement results determined based on an analysis of inter-laboratory comparative studies. The analyses presented in the paper apply to an equivalent sound pressure level determined for a permanent source of sound – an air-conditioning device. The test methods were characterised according to their precision. In order to compare them, their compatibility was analysed based on the methodology described in the literature, alongside a single-factor analysis of variance. It was determined that there were no grounds for rejecting the hypothesis about lack of statistical differences between the results obtained via different methods. Each of the methods is characterised by different precision, so consequently the same result obtained with each method carries a different risk in regards to noise assessment.
The reason for taking up this kind of research was the decision of the Polish Technical Committee in 2018 about introducing new acoustic requirements in Poland concerning the admissible indoor sound pressure levels. It was decided to implement new international methods of testing indoor sound pressure levels emanating from the service equipment in the building. It was necessary to show the differences between the current method and its new counterparts.
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Bibliography

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Authors and Affiliations

Elżbieta Nowicka
1
Ewa Szewczak
1

  1. Building Research Institute, Warsaw, Poland
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Abstract

The main aim of the study is an assessment of models suitability for steel beams made of thin-walled cold-formed sigma profiles with respect to different numerical descriptions used in buckling analysis. The analyses are carried out for the sigma profile beam with the height of 140 mm and the span of 2.20 m. The Finite Element (FE) numerical models are developed in the Abaqus program. The boundary conditions are introduced in the formof the so-called fork support with the use of displacement limitations. The beams are discretized using S4R shell finite elements with S4R linear and S8R quadratic shape functions. Local and global instability behaviour is investigated using linear buckling analysis and the models are verified by the comparison with theoretical critical bending moment obtained from the analytical formulae based on the Vlasow beam theory of the thin-walled elements. In addition, the engineering analysis of buckling is carried out for a simple shell (plate) model of the separated cross-section flange wall using the Boundary Element Method (BEM). Special attention was paid to critical bending moment calculated on the basis of the Vlasov beam theory, which does not take into account the loss of local stability or contour deformation. Numerical shell FE models are investigated, which enable a multimodal buckling analysis taking into account interactive buckling. The eigenvalues and shape of first three buckling modes for selected numerical models are calculated but the values of critical bending moments are identified basing on the eigenvalue obtained for the first buckling mode.
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Authors and Affiliations

Katarzyna Rzeszut
1
ORCID: ORCID
Ilona Szewczak
2
ORCID: ORCID
Patryk Różyło
3
ORCID: ORCID
Michał Guminiak
4
ORCID: ORCID

  1. Poznan University of Technology, Institute of Building Engineering, Marii Skłodowskiej-Curie 5, 60-965 Poznan
  2. Lublin University of Technology, Faculty of Civil Engineering and Architecture, ul. Nadbystrzycka 38D,20–618 Lublin, Poland
  3. Lublin University of Technology, Faculty of Mechanical Engineering, ul. Nadbystrzycka 38 D, 20–618 Lublin, Poland
  4. Poznan University of Technology, Institute of Structural Analysis, Marii Skłodowskiej-Curie 5, 60-965 Poznan, Poland

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