Wyniki wyszukiwania - BazTech

1

Application of linguistic cues in the analysis of language of hate groups

Balcerzak B., Jaworski W.

Computer Science

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2015

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Vol. 16 (2)

145--156

EN

Hate speech and fringe ideologies are social phenomena that thrive on-line. Members of the political and religious fringe are able to propagate their ideas via the Internet with less effort than in traditional media. In this article, we attempt to use linguistic cues such as the occurrence of certain parts of speech in order to distinguish the language of fringe groups from strictly informative sources. The aim of this research is to provide a preliminary model for identifying deceptive materials online. Examples of these would include aggressive marketing and hate speech. For the sake of this paper, we aim to focus on the political aspect. Our research has shown that information about sentence length and the occurrence of adjectives and adverbs can provide information for the identification of differences between the language of fringe political groups and mainstream media.

2

Computed tomography image processing for diagnostic and training applications in medicine

Borzęcki M., Skurski A., Kamiński M., Balcerzak B., Chłapiński J., Napieralski A., Kasprzyk J., Lipiec P.

Journal of Medical Informatics & Technologies

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2012

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Vol. 19

67--73

EN

The paper deals with processing of imaging data obtained in the course of different medical examination procedures, for use in applications focused on improving both the diagnostic process of a patient as well as extending the training possibilities for medical personnel. Computed tomography (CT) data serves as the main source of structural and volumetric information. Fusion with left ventricular systolic function map, provides a vital information on the state of heart muscle. In parallel, the same set of computed tomography data is reused for simulation of trans-esophageal echocardiography (TEE). The presented simulation setup is used in the course of medical personnel training.

3

The generalized Stokes theorem for R-linear forms on Lie algebroids

Balcerzak B.

Journal of Applied Analysis

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2012

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Vol. 18, nr 1

117-131

EN

We present the generalized Stokes theorem for R-linear forms on Lie algebroids (which can be non-local). The Stokes formula on forms is applied to prove that two homotopic homomorphisms of Lie algebroids imply the existence of a chain operator joining their pullback operators.

4

Image Processing Methods for Diagnostic and Simulation Applications in Cardiology

Skurski A., Borzęcki M., Balcerzak B., Kamiński M., Napieralski A., Kasprzak J. D., Lipiec P. P.

International Journal of Microelectronics and Computer Science

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2012

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Vol. 3, nr 4

146-151

EN

The paper describes two particular applications of image processing for the purpose of analysis and simulation in the field of cardiology. The authors describe a method which allows for combining the 2D image obtained in ECHO examination, and a 3D model of heart, extracted from a set of CT slices. The fused image provides an intuitive view on the contractual function of heart, by overlaying the bull's eye diagram on the model of left ventricle. By preserving the spatial information, it is possible to accurately point the location of areas with impaired contractual function. Another method described by the authors, displays the use of the CT volume for simulation of echocardiography images for purpose of training application. A simple approach based on pixel brightness adaptation is used to provide images of sufficient training quality. At the same time authors highlight the issues of storage and run-time memory requirement of such application, and suggest a method of reducing the working set size.

5

Weitzenböck Formula on Lie Algebroids

Balcerzak B., Kalina J., Pierzchalski A.

Bulletin of the Polish Academy of Sciences. Mathematics

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2012

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Vol. 60, no 2

165--176

EN

A Weitzenböck formula for the Laplace–Beltrami operator acting on differential forms on Lie algebroids is derived.

6

Spektrometryczna analiza składu pierwiastkowego drobin pyłowych zanieczyszczeń powietrza w środowisku miejskim oraz drobin adsorbowanych w układzie oddechowym mieszkańców aglomeracji miejskiej

Konarski P., Kaczorek K., Balcerzak B., Hałuszka J., Ścibor M., Iwanejko I., Radomska J., Zawada A.

Elektronika : konstrukcje, technologie, zastosowania

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2009

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Vol. 50, nr 7

121-124

PL

Przedstawiono wyniki pilotowych pomiarów dotyczących drobin pyłów zawieszonych w środowisku miejskim. Badania pozwoliły na określenie rozkładów ziarnowych drobin pyłów oraz poznanie składu chemicznego poszczególnych frakcji tych drobin. Pobór pyłów prowadzono przy pomocy kolektorów umożliwiających zarówno pomiar stacjonarny na wybranym stanowisku w środowisku miejskim jak i pobór pyłów w tym środowisku przy pomocy osobistego przenośnego kolektora. Celem była także próba porównania składu pierwiastkowego pobieranych drobin z drobinami pyłów adsorbowanych w układzie oddechowym człowieka. W przeprowadzonym badaniu efektów ekspozycji na pyłowe zanieczyszczenia w środowisku miejskim zastosowano swoistą metodę badawczą, traktującą organizm człowieka jako kolektor - pobór materiału biologicznego (tzw. indukowanej plwociny) od wybranej grupy ochotników. Badania spektrometryczne zebranych materiałów wykonano stosując spektrometr mas ze źródłem iskrowym JEOL JMS-1BM2 i wykazano obecność drobin pyłów osadzających się na ścianach dróg oddechowych. Przeprowadzono analizę mikroskopową tych drobin i porównano ich skład pierwiastkowy ze składem drobin pobieranych w środowisku miejskim za pomocą kolektorów mechanicznych.

EN

Results of pilot studies considering collection and analysis of urban environment micro- and nanoparticles are presented. Particulate matter (PM) is collected from indoor and outdoor urban air with several methods using mechanical collectors like personal cascade impactors and quartz filters. The other applied specific method is treating human organism as a collector - this method is based on identification of PM in biological material - induced sputum, collected from the selected group of volunteers. Elemental analysis of the collected material is performed by spark source mass spectrometry (SSMS) using magnetic sector JEOL JMS-1 BM2 mass analyzer. Obtained results of samples collected using mechanical collectors and extracted from induced sputum were compared.