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Search Results: 1 - 10 of 1527 matches for " Agnieszka Polak "
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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 impact of pharmaceutical care on patients with hypertension and their pharmacists
Skowron,Agnieszka; Polak,Sebastian; Brandys,Jerzy;
Pharmacy Practice (Internet) , 2011, DOI: 10.4321/S1886-36552011000200009
Abstract: objective: the purpose of the study was to assess the influence of pharmaceutical care on patients′ knowledge, quality of life and blood pressure and to determine whether new type of pharmaceutical services changes the pharmacists′ satisfaction and knowledge. methods: community pharmacies were randomly assigned to study and control group and pharmacists from both groups included patients with hypertension, who meet inclusion and exclusion criteria. study group provided the pharmaceutical care (education, pharmacotherapy monitoring, detecting and solving drug related problems) for their patients, while the control group provided the standard pharmaceutical services (dispensing medicines with or without counseling). at the beginning and the end of the study pharmacists and patients filled in the knowledge test. pharmacists fulfilled also satisfaction questionnaire. results: survey data were collected from 28 and 56 patients from community pharmacies in study and control group respectively. at the last meeting the normal blood pressure achieved 79% and 55% patients in study and control group, respectively (p>0,05). the pharmaceutical care improved patients′ knowledge about disease. pharmacists from study group, who provided pharmaceutical care, had higher level of pharmacotherapy knowledge and professional satisfaction than the control group. conclusion: implementation of pharmaceutical care into the pharmacy practice benefits both, patients and pharmacists.
Larvae of mealworm (Tenebrio molitor L.) as European novel food  [PDF]
Ewa Siemianowska, Agnieszka Kosewska, Marek Aljewicz, Krystyna A. Skibniewska, Lucyna Polak-Juszczak, Adrian Jarocki, Marta J?dras
Agricultural Sciences (AS) , 2013, DOI: 10.4236/as.2013.46041
Abstract:

For centuries, insects have been used as food due to their availability and easiness in raising that is much less burdensome for environment than animal husbandry breeding. Mealworm (Tenebrio molitor L.) is a store-pest of which larvae are consumed by people. The aim of the work was to determine the nutritional value of larvae of mealworm (Tenebrio molitor L.). The material was a three-month-old mealworm larva 25 -30 mmin length. Larvae were boiled for 3 min and next dried in 60℃. Contents of water, ash, minerals, protein, fat and fat acids profile have been determined. Fresh larvae contained 56% of water, 18% of total protein, 22% of total fat and 1.55% of ash. High contents of minerals were found in the larvae: magnesium (87.5 mg/100g), zinc (4.2 mg/100g), iron (3.8 mg/100g), copper (0.78 mg/100g) and manganese (0.44 mg/100g). The proportion of n-6/n-3 fatty acids was very advantageous and amounted to 6.76. Larvae powder contained twice higher content of protein, fat, ash and minerals. Larva of mealworm is a valuable source of nutrients in amounts more profitable for human organism than traditional meat food. Powdered larva is a high-grade product to be applied as a supplement to traditional meals.

Ocena jako ci ycia doros ych chorych po operacji zamkni cia ubytku w przegrodzie mi dzyprzedsionkowej
Piotr Podolec,El?bieta Suchoń,Agnieszka Polak,Pawe? Rubi?
Polish Journal of Cardiology , 2003,
Abstract: Cel pracy: Ocena jako ci ycia doros ych chorych po operacji zamkni cia ubytku w przegrodzie mi dzyprzedsionkowej (ASD). Materia i metodyka: Badanie przeprowadzono w oparciu o ankiet , któr rozes ano do 324 chorych z ASD operowanych w latach 1990-1999. Pytania zawarte w ankiecie dotyczy y: wyst powania objawów klinicznych przed i po operacji, aktualnego samopoczucia, subiektywnej oceny wydolno ci fizycznej, aktywno ci pozazawodowej i stanu zatrudnienia chorych. Pytano równie o wyst powanie i przyczyny l ków w przebiegu przed i pooperacyjnym oraz o wyst powanie wad serca u potomstwa. Ocen dolegliwo ci oraz wydolno ci przed i po operacji przeprowadzono dla ca ej grupy chorych, a nast pnie porównano z uwzgl dnieniem p ci, wieku (gr. I <40 r. ., gr. II >40 r. .) oraz wielko ci ubytku (pomiar ródoperacyjny). Wyniki: Prawid owo wype nion ankiet odes a o 241 (74,4%) chorych: 180 (75%) kobiet, 61 (25%) m czyzn, w wieku 18-68 lat, rednio 34,5±;12,7 roku. Po operacji chorzy znamiennie rzadziej zg aszali wyst powanie duszno ci, omdleń/zas abni (p<0,0001) oraz ko atań serca (p<0,05). Nie stwierdzono istotnych ró nic w wyst powaniu objawów klinicznych przed i po operacji ze wzgl du na wielko ubytku. Cz sto zg aszania duszno ci i ko atań serca przed operacj by a wi ksza w grupie chorych powy ej 40 r. . (p<0,05), natomiast po zabiegu nie stwierdzono istotnych ró nic. Popraw tolerancji wysi ku po operacji zadeklarowa o 66% chorych, 24% stwierdzi o brak zmian, a 10% oceni o swoj wydolno jako gorsz . Po zabiegu stwierdzono istotn popraw (p<0,05) w pokonywaniu pi ter w obu grupach wiekowych. Nie stwierdzono istotnych ró nic w tolerancji wysi ku ze wzgl du na wielko ubytku. Mimo istotnego zmniejszenia ilo ci objawów i poprawy wydolno ci fizycznej liczba chorych pobieraj cych rent inwalidzk zwi kszy a si z 7 do 40% (p<0,0001). Zabieg operacyjny pozwoli na ca kowity lub cz ciowy powrót do aktywno ci pozazawodowej u 72% chorych, brak zmian poda o 20%, a pogorszenie 8% chorych. Przed operacj chorzy najcz ciej obawiali si utraty ycia (49%), wyst pienia powik ań oko ooperacyjnych (47%) i pogarszania si wydolno ci fizycznej (44%). Po zabiegu najcz ciej wymieniano l k przed wyst pieniem powik ań wady. Obawy zwi zane z mo liwo ci dziedziczenia wady serca przez dzieci poda o 26% kobiet. Na podstawie przeprowadzonej ankiety cz sto dziedziczenia wrodzonej wady serca przez dzieci matek z ASD oszacowano na 7%. Wnioski: Nie stwierdzono istotnych ró nic w cz sto ci wyst powania objawów klinicznych oraz w wydolno ci fizycznej ze wzgl du na wielko ASD
Application of response surface methodology to enhancement of biomass production by Lactobacillus rhamnosus E/N
Polak-Berecka, Magdalena;Wa?ko, Adam;Kordowska-Wiater, Monika;Targoński, Zdzis?aw;Kubik-Komar, Agnieszka;
Brazilian Journal of Microbiology , 2011, DOI: 10.1590/S1517-83822011000400035
Abstract: response surface methodology (rsm) was employed to study the effects of various medium components on biomass production by lactobacillus rhamnosus e/n. this strain is commonly used in the pharmaceutical and food industries due to its beneficial effect on the human gut and general health. the best medium composition derived from rsm regression was (in g/l) glucose 15.44, sodium pyruvate 3.92, meat extract 8.0, potassium phosphate 1.88, sodium acetate 4.7, and ammonium citrate 1.88. with this medium composition biomass production was 23 g/l of dry cell weight after 18 h of cultivation in bioreactor conditions, whereas on mrs the yield of biomass was 21 g/l of dry cell weight. the cost of 1 g of biomass obtained on mrs broth was calculated at the level of 0.44 € whereas on the new optimal medium it was 25% lower. it may be concluded then, that the new medium, being cheaper than the control mrs allows large scale commercial cultivation of the l. rhamnosus strain. this study is of relevance to food industry because the possibility to obtain high yield of bacterial biomass is necessary step in manufacturing of probiotic food.
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.
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.
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.
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