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Search Results: 1 - 10 of 1550 matches for " Marcin POLAK "
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Urojone-nic. Poj cie zasady w être, Monde, Imaginaire Stanislasa Bretona
Marcin POLAK
Argument : Biannual Philosophical Journal , 2012,
Abstract: A philosophical study of the concept of the principle was conducted by Stanislas Breton inhis two books: Du principe and être, Monde Imaginaire, the first of which was dominated byits analytical and abstract style, while the second was speculative and imaginary. This articleundertakes the task of reconstructing the idea of the principle contained in the latter position.In the first part of the article the author presents two currents of thought concerning theprinciple: the ontological, which is based on the category of logos, and the ontomythological,for which the leading category is mythos. After discussing the differences between these twofields of thought and their corresponding fields of being, the author undertakes an attempt atdescribing the absolute source of reality – imaginary-nothing. The attempt is accompanied bya presentation of the way in which the ineffable principle produces the Word, whose originalexpression is prattle. The article concludes with an analysis of fable as the original form of expressionof the imaginary-nothing, from which arise the two trunks of rationality mentionedabove: the ontological and the ontomythological.
Economization of public services sector and its consequences
Ewa Polak,Waldemar Polak
Contemporary Economy , 2013,
Abstract: The work is devoted to the analysis of the process of human life’s economization Processes taking place in the economic sphere nowadays, affect the social changes in the essential way, affect both the condition of an individual and on relationships between people. The main force of the socio-cultural transformation is scientific-technological progress, especially in the communication and transport as well as promoting the principles of governing the liberal market economy by global economic actors. Neo-liberal market economy and the values and attitudes associated with it (freedom, individualism, competition, mobility, flexibility, striving at all costs to success, especially material) affect the political sphere (economization of politics, marketization of democracy) cultural (the dominance of the commercialized consumer culture) and social (destruction of traditional social structures, disintegration, dehumanisation and commercialization of human relationships and cultural patterns). Commercialized consumer culture is accompanied with marketization and economization of all spheres of life and social relations. Everything could be buying: education, safety, care, treatment and longer life. Life itself is also commercializing, insurance companies, employers, companies offering on the market different goods and services assign a specific monetary value to life. People are judged by perspective of consumer behaviour, and products suited to the cultural meaning. Traditional values are replaced by market, commercial values.
A mesh algorithm for principal quadratic forms
Agnieszka Polak
Annales UMCS, Informatica , 2011, DOI: 10.2478/v10065-011-0026-3
Abstract: In 1970 a negative solution to the tenth Hilbert problem, concerning the determination of integral solutions of diophantine equations, was published by Y. W. Matiyasevich. Despite this result, we can present algorithms to compute integral solutions (roots) to a wide class of quadratic diophantine equations of the form q(x) = d, where q : Z is a homogeneous quadratic form. We will focus on the roots of one (i.e., d = 1) of quadratic unit forms (q11 = … = qnn = 1). In particular, we will describe the set of roots Rq of positive definite quadratic forms and the set of roots of quadratic forms that are principal. The algorithms and results presented here are successfully used in the representation theory of finite groups and algebras. If q is principal (q is positive semi-definite and Ker q={v ∈ Zn; q(v) = 0}=Z · h) then |Rq| = ∞. For a given unit quadratic form q (or its bigraph), which is positive semi-definite or is principal, we present an algorithm which aligns roots Rq in a Φ-mesh. If q is principal (|Rq| < ∞), then our algorithm produces consecutive roots in Rq from finite subset of Rq, determined in an initial step of the algorithm.
THE MISINFORMATION EFFECT IN FINANCIAL MARKETS – AN EMERGING ISSUE IN BEHAVIOURAL FINANCE
Mateusz Polak
e-Finanse , 2012,
Abstract: The following paper is a theoretical introduction of the misinformation effect to behavioural finance. The misinformation effect causes a memory report regarding an event or particular knowledge to become contaminated with misleading information from another source. The paper aims to describe possible impact of the aforementioned phenomenon on the interpretation of stock market data, as well as the consequences of misinformation on investment-related decisions and the effective market hypothesis.
Challenges and Threats of the Labor Market Based on Modern Social and Economic Changes. Selected Issues
Ewa Polak
Contemporary Economics , 2010,
Abstract: During at least the last thirty years in the global labor market significant changes in the preferred qualifications and skills, occupational structure, employment structure and income structure as well as the related to this evolution of the socio-economic functions of work can be seen. A specific polarization of the labor market takes place. The factor that differentiates the situation of individual employees and people who seek work is not only the level of education, its type and quality, but far particular predispositions, attitudes, skills and personal characteristics. The situation of an economically active persons is not an autonomous phenomenon arising only from their qualifications, knowledge, determination and life strategy, but is increasing the result of a globalization distribution – first of all global competition and the rules governing it.
Counting Triangles in Large Graphs on GPU
Adam Polak
Computer Science , 2015,
Abstract: The clustering coefficient and the transitivity ratio are concepts often used in network analysis, which creates a need for fast practical algorithms for counting triangles in large graphs. Previous research in this area focused on sequential algorithms, MapReduce parallelization, and fast approximations. In this paper we propose a parallel triangle counting algorithm for CUDA GPU. We describe the implementation details necessary to achieve high performance and present the experimental evaluation of our approach. Our algorithm achieves 8 to 15 times speedup over the CPU implementation and is capable of finding 3.8 billion triangles in an 89 million edges graph in less than 10 seconds on the Nvidia Tesla C2050 GPU.
Scots pine (Pinus sylvestris L.) ecosystem macronutrients budget on reclaimed mine sites—stand trees supply and stability  [PDF]
Marcin Pietrzykowski
Natural Science (NS) , 2010, DOI: 10.4236/ns.2010.26074
Abstract: The aim of this study was to determine the sources, accumulation rate and relationships between macronutrients in reclaimed mine soils (RMS) and aboveground plant biomass on external slopes of lignite mines in central Poland. The study was conducted on two different types of sites with 10-year-old Scots (Pinus sylvestris L.) pine stands located on Quaternary loamy sands (QLS) and on Tertiary acidic carboniferous sands following neutralisation (TCS). The control plot was located in the same vicinity on an external slope in a natural pine ecosystem on a Haplic Podzol in a young mixed coniferous forest habitat (NPE). The nutrient resources, apart from N, were higher in RMS than in comparable Haplic Podzols, however, N primarily accumulated in the mineral horizons. In forest soils, the main macronutrient resources were accumulated in organic horizons, which in natural soils of coniferous forest habitats constitute the main source of nutrients. The proportion of individual macronutrients accumulated in the biomass vs. pools in soil was much lower on the external slope RMS than in the natural site, which in view of the potential richness of RMS, indicated poorer sorption and utilization of macronutrients in aboveground plant biomass than in natural habitats. Other important linear correlations (p = .05) were found between the sources of nutrients in RMS and elements accumulated in biomass (most clearly in case of K, Ca and Mg), which indicates important relationships between soil and vegetation in the first stages of ecosystem development as stimulated by reclamation.
Labor Productivity Parity vs Trend of Exchange Rate  [PDF]
Marcin Jedrzejczyk
Modern Economy (ME) , 2012, DOI: 10.4236/me.2012.36099
Abstract: Translation, understood as a process of restating the value from a particular currency to another currency, is based on the market exchange rate. So in practice, almost every value in terms of goods, assets, liabilities, and wages is converted to US dollars according to the current exchange rate. A fundamental method of translation was originated by Balassa and Samuelson in 1964 who explained that the main driver of the exchange rate is productivity, which is higher in developed countries and lower in poor countries. That is why these differences must be eliminated in order to make the exchange rate useful. However, different research verifying the Balassa-Samuelson approach, especially in the long run, had revealed some inconsistencies. Recently the Balassa-Samuelson theory has been enriched by more precise determination of productivity; specifically, an appropriate ratio for the translation procedure has appeared labor productivity Q defined as quotient of real GDP to cost of labor. The main aim of the paper is to present statistical verification of labor productivity parity as the main driver of the exchange rate. In the research, there will be an estimation of parameters of linear function in which the dependent variable represents the average exchange rate for the period between a particular country and the USA, and the independent variable is the average hourly pay quotient modified by labor productivity parity. If the linear function parameters describe the y = x relation, the theory of labor productivity as the determinant of exchange rate behavior will be confirmed.
Cosmic Engineering: Moving Asteroids  [PDF]
Marcin Misiak
International Journal of Astronomy and Astrophysics (IJAA) , 2013, DOI: 10.4236/ijaa.2013.34060
Abstract:

This paper presents methods of orbit transfer for small planetoids from the main belt to the future colonies on Mars using current technologies. The results show that by using nuclear weapon or even kinetic energy weapon (for retrograde bodies) asteroids with masses up to about 100 tons can be moved. Both options assume that asteroid will survive explosion.

Evolutionary Algorithms in Astrodynamics  [PDF]
Marcin Misiak
International Journal of Astronomy and Astrophysics (IJAA) , 2016, DOI: 10.4236/ijaa.2016.64035
Abstract:

This paper presents the method of solving the equations of motions by evolutionary algorithms. Starting from random trajectory, the solution is obtained by accepting the mutation if it leads to a better approximations of Newtons second law. The general method is illustrated by finding trajectory to the Moon.

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