Wszystkie pola: Pawlik, S. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Phase Structure and Heat Generation in the Co-Precipitated Magnetite Nanoparticles
Autorzy:: Pawlik, P.
Pruba, M.
Pawlik, K.
Kotynia, K.
Powiązania:: https://bibliotekanauki.pl/articles/1030238.pdf
Data publikacji:: 2017-05
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 75.47.Lx
78.67.Bf
78.70.Ck
76.80.+y
87.50.S-
Opis:: In the present studies the phase structure and magnetic ordering of magnetite nanoparticles were investigated. The powder samples were obtained by co-precipitation from Fe(III) and Fe(II) salts. SiO₂ coating was performed using the modified Stöber process. X-ray diffraction studies revealed presence of the only one Fe₃O₄ crystalline phase both for the non-coated and SiO₂-coated samples. The Mössbauer studies have shown differences in shapes of measured spectral lines for Fe₃O₄ particles subjected to the Stöber process and non-coated particles. The heating efficiency was measured for glycerol dispersed nanoparticles. The analysis have shown changes in specific loss power depending on the concentration of the nanoparticles and amplitude of alternating magnetic field.
Źródło:: Acta Physica Polonica A; 2017, 131, 5; 1217-1221
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Exogenous dietary factors as important modulator of human lipid profile
Autorzy:: Pawlik-Sobecka, L.
Placzkowska, S.
Rorbach-Dolata, A.
Piwowar, A.
Powiązania:: https://bibliotekanauki.pl/articles/3741.pdf
Data publikacji:: 2019
Wydawca:: Instytut Medycyny Wsi
Źródło:: Journal of Pre-Clinical and Clinical Research; 2019, 13, 2
1898-2395
Pojawia się w:: Journal of Pre-Clinical and Clinical Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Structural and Magnetic Studies of the Fe-Co-Zr-Mo-W-B Amorphous Alloy
Autorzy:: Kotynia, K.
Pawlik, P.
Hasiak, M.
Pruba, M.
Pawlik, K.
Powiązania:: https://bibliotekanauki.pl/articles/1030235.pdf
Data publikacji:: 2017-05
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 61.43.Dq
75.50.Kj
75.30.Sg
75.30.Kz
75.40.-s
Opis:: The paper presents a characterization of the phase structure by X-ray diffraction and isothermal magnetic entropy changes for the amorphous Fe₅₈Co₁₀Zr₁₀Mo₅W₂B₁₅ alloy sample in the as-quenched state. An ingot sample was obtained by arc-melting. The ribbon sample was obtained by the melt-spinning technique. The magnetic measurements at various temperatures allowed for the study of the Curie temperature T_{C} and magnetic entropy changes |ΔS_{M}|. In order to determine the Curie temperature T_{C} of amorphous phase, three independent methods were used. Determination of the Curie temperature T_{C} for the amorphous alloys is not a trivial problem, as magnetization does not decreases rapidly around T_{C}. Therefore it is essential issue to establish T_{C} using few complementary methods. X-ray diffraction analysis revealed a fully amorphous structure of the ribbon samples.
Źródło:: Acta Physica Polonica A; 2017, 131, 5; 1204-1206
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Non-Contact Interaction of Ultrasonic Wave on Laser Beam
Autorzy:: Muc, S.
Gudra, T.
Bereś-Pawlik, E.
Powiązania:: https://bibliotekanauki.pl/articles/1493252.pdf
Data publikacji:: 2011-10
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 43.35.Yb
42.81.Wg
Opis:: The article presents the results of Matlab simulations and experimental studies of non-contact influence of ultrasonic wave on laser beam. A role of the air-gap and the influence of the air-gap on laser-ultrasonic transmission in optical fiber were examined. Two optical fibers were used with air-gap between them. One fiber was attached to a laser diode and positioned to pass through a hole in a sandwich type transducer and in a velocity transformer. In the velocity transformer (at its end), after leaving small air-gap, to the end of the transformer, the other optical fiber is attached. The second fiber can interact with a given biological structure.
Źródło:: Acta Physica Polonica A; 2011, 120, 4; 702-704
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Accuracy Analysis of the Box-Counting Algorithm
Autorzy:: Górski, A.
Drożdż, S.
Mokrzycka, A.
Pawlik, J.
Powiązania:: https://bibliotekanauki.pl/articles/1408964.pdf
Data publikacji:: 2012-02
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 05.45.Df
02.60.Gf
47.52.+j
Opis:: Accuracy of the box-counting algorithm for numerical computation of the fractal exponents is investigated. To this end several sample mathematical fractal sets are analyzed. It is shown that the standard deviation obtained for the fit of the fractal scaling in the log-log plot strongly underestimates the actual error. The real computational error was found to have power scaling with respect to the number of data points in the sample $(n_{tot})$. For fractals embedded in two-dimensional space the error is larger than for those embedded in one-dimensional space. For fractal functions the error is even larger. Obtained formula can give more realistic estimates for the computed generalized fractal exponents' accuracy.
Źródło:: Acta Physica Polonica A; 2012, 121, 2B; B-28-B-30
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: The Moor’s Political Colour: Race and Othello in Poland
Autorzy:: Kowalcze-Pawlik, Anna
Powiązania:: https://bibliotekanauki.pl/articles/1033510.pdf
Data publikacji:: 2020-12-30
Wydawca:: Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:: Othello in Poland
blackface in theatre
brownface in theatre
race in translation
Opis:: This paper provides a brief outline of the reception history of Othello in Poland, focusing on the way the character of the Moor of Venice is constructed on the page, in the first-published nineteenth-century translation by Józef Paszkowski, and on the stage, in two twentieth-century theatrical adaptations that provide contrasting images of Othello: 1981/1984 televised Othello, dir. Andrzej Chrzanowski and the 2011 production of African Tales Based on Shakespeare, in which Othello’s part is played by Adam Ferency (dir. Krzysztof Warlikowski). The paper details the political and social contexts of each of these stage adaptations, as both of them employ brownface and blackface to visualise Othello’s “political colour.” The function of blackface and brownface is radically different in these two productions: in the 1981/1984 Othello brownface works to underline Othello’s overall sense of alienation, while strengthening the existing stereotypes surrounding black as a skin colour, while the 2011 staging makes the use of blackface as an artificial trick of the actor’s trade, potentially unmasking the constructedness of racial prejudices, while confronting the audience with their own pernicious racial stereotypes.
Źródło:: Multicultural Shakespeare: Translation, Appropriation and Performance; 2020, 22, 37; 171-190
2083-8530
2300-7605
Pojawia się w:: Multicultural Shakespeare: Translation, Appropriation and Performance
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Feed Forward Neural Network for Autofluorescence Imaging Classification
Autorzy:: Kulas, Z.
Bereś-Pawlik, E.
Wierzbicki, J.
Powiązania:: https://bibliotekanauki.pl/articles/1506801.pdf
Data publikacji:: 2010-12
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 87.57.-s
87.57.R-
87.57.nm
87.19.xu
87.19.xj
Opis:: The key elements in cancer diagnostics are the early identification and estimation of the tumor growth and its spread in order to determine the area to be operated on. The aim of our study was to develop new methods of analyzing autofluorescence images which will allow us an objective and accurate assessment of the location of a tumor and will also be helpful in determining the advancement of the disease. The proposed classification methods are based on neural network algorithms. An Olympus company endoscopic system was used for an autofluorescence intestine imaging study. The autofluorescence imaging analysis process can be divided into several main stages. The first step is preparation of a training data set. The second one involves selection of feature space, namely the selection of those features which enable distinguishing the pathologically altered areas from the healthy ones. Final stages of the analysis include pathologically changed tissue classification and diagnosis.
Źródło:: Acta Physica Polonica A; 2010, 118, 6; 1189-1193
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: The Possibility of a Simultaneous Transmission οf Ultrasound and Laser Radiation via Flexible Optical Silica Glass Fibre
Autorzy:: Muc, S.
Gudra, T.
Beres-Pawlik, E.
Powiązania:: https://bibliotekanauki.pl/articles/1807739.pdf
Data publikacji:: 2009-09
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 43.35.Yb
42.81.Wg
Opis:: Glass optical fibres are a promising medium for simultaneous laser-ultrasonic applications. The proposed application system is based on simultaneous transmission of laser radiation and ultrasounds in a flexible silica glass fibre. The optical fibre's core was made of $SiO_2$ (97%) and $GeO_2$ (3%) and the cladding was 100% $SiO_2$. The material the optical fibre is made of enables simultaneous transmission of laser radiation and ultrasonic wave. Experiments were performed using a Mach-Zehnder optical waveguide interferometer with single-mode optical fibre coupler. This paper presents measurement results for delivering ultrasonic waves to the optical fibre using longitudinal vibrations generated by a sandwich ultrasonic transducer with a velocity transformer. The study presents the relations concerning simultaneous operation of both types of waves and the possibilities of transmission of low frequency, high power ultrasonic wave in optical fibres using a sandwich type transducer.
Źródło:: Acta Physica Polonica A; 2009, 116, 3; 359-362
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Experimental Study of Simultaneous Transmission of Ultrasonic Waves and Optical Radiation via Optical Fiber Couplers
Autorzy:: Muc, S.
Gudra, T.
Bereś-Pawlik, E.
Powiązania:: https://bibliotekanauki.pl/articles/178002.pdf
Data publikacji:: 2010
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: optical fiber couplers
simultaneous transmission of optical and acoustic
Opis:: This article presents the results of experimental studies of simultaneous transmission of ultrasonic waves and laser signals in optical fibers by the use of both the optical single mode and multimode fiber couplers. This work was aimed, among other things, at the study of the way the acoustic energy affects a laser beam. The light wave was guided into one of the coupler’s arms. The optical power applied to one input of the coupler is separated into two coupler outputs according to the rate determined by the coupling coefficient. Only an ultrasonic wave generated by a sandwich type transducer is applied to the other arm of the coupler. In this experiment, as in case of the light wave, the acoustic power is separated into both the outputs. One can observe the interaction of both the waves on the two outputs – a modulation of the light wave by means of the ultrasonic wave is possible. The output signal was detected using a PIN diode and an optical power meter (OPM). Temporary courses were observed on an oscilloscope screen. The simultaneous transmission of ultrasounds and optical radiation in optical fibers can be used in the construction of medical equipmen.
Źródło:: Archives of Acoustics; 2010, 35, 1; 111-122
0137-5075
Pojawia się w:: Archives of Acoustics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Determining the Distribution of Stochastic Impulses Acting on a High Frequency System through an Analysis of Its Vibrations
Autorzy:: Jabłoński, M.
Ozga, A.
Korbiel, T.
Pawlik, P.
Powiązania:: https://bibliotekanauki.pl/articles/1504209.pdf
Data publikacji:: 2011-06
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 45.10.-b
45.30.+s
Opis:: The motion of an oscillator with damping excited by impulses has the form $ξ_t = \frac{1}{\sqrt{a^2 - b^2}} \sum_{0
Źródło:: Acta Physica Polonica A; 2011, 119, 6A; 977-980
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: Point Investigation Method for Cancer Changed Tissues
Autorzy:: Kłonowski, Ł.
Kulas, Z.
Bereś-Pawlik, E.
Rząca, M.
Czarnecki, R.
Grzebieniak, Z.
Powiązania:: https://bibliotekanauki.pl/articles/1506797.pdf
Data publikacji:: 2010-12
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 87.57.-s
87.57.R-
87.57.nm
87.19.xu
87.19.xj
Opis:: In this paper we describe the method of point investigation for cancer changed tissues with application of fluorescence phenomenon. The measurements have been made using a specially constructed scanning setup and fiber sensors. The experiment with investigation of endogenous fluorescence has been made on different types of slide tissues (e.g. breast and intestine tumor or precancerous and pathological skin tissues). The obtained spectral characteristics of fluorescence, with typical intensity peaks in 480-520 nm range, have explicitly outlined healthy and pathologically changed areas. The intensity of detected fluorescence determines the evaluation of disease advancement. Moreover, the ability to scan the surface of a tissue sample with constantly moving step of scanning setup in X-Y axis allows us to present the results in a spatial distribution of fluorescence intensity.
Źródło:: Acta Physica Polonica A; 2010, 118, 6; 1174-1176
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: The Structural Stability of Soft Magnetic Fe-Co-Zr-W-B Metallic Glasses Investigated by the in-situ X-ray Diffraction
Autorzy:: Michalik, S.
Bednarcik, J.
Pawlik, P.
Matija, R.
Sovak, P.
Powiązania:: https://bibliotekanauki.pl/articles/1366893.pdf
Data publikacji:: 2014-07
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 61.05.cp
61.43.Dq
Opis:: The atomic structure of as-prepared $Fe_{61}Co_{(14-x)}Zr_{5}W_{x}B_{20}$ (x=1, 2 and 4) ribbon samples and their thermal stability were investigated by in-situ high-energy X-ray diffraction experiments. It was observed that higher W concentration causes the tiny shift of the main peak of the reduced atomic pair distribution function to higher values of interatomic distances and increases the coefficient of volume thermal expansion. The crystallization process occurs in two steps and is qualitatively the same for all studied specimens. Firstly the $Fe_{23}B_{6}$ phase is created and later is transformed to other types of borides together with the creation of a Fe-based phase.
Źródło:: Acta Physica Polonica A; 2014, 126, 1; 66-67
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

Tytuł:: Estimation of reference intervals of insulin resistance (HOMA), insulin sensitivity (Matsuda), and insulin secretion sensitivity indices (ISSI-2) in Polish young people
Autorzy:: Płaczkowska, S.
Pawlik-Sobecka, L.
Kokot, I.
Piwowar, A.
Powiązania:: https://bibliotekanauki.pl/articles/2085608.pdf
Data publikacji:: 2020
Wydawca:: Instytut Medycyny Wsi
Tematy:: insulin resistance
young adult
Oral Glucose Tolerance Test
Reference Interval
Opis:: Introduction. Insulin resistance is becoming an increasingly widespread problem worldwide. For its determination indirect indices of insulin resistance or insulin sensitivity have used. Those indices based on simultaneous measurements of blood glucose and insulin concentrations under fasting conditions or during the Oral Glucose Tolerance Test. Objective. The aim of the study was to estimate reliable reference values for the indices used in insulin resistance diagnosis. Materials and method. 191 selected participants, aged 18–31, were enrolled into the reference population. 130 participants from the reference population with fasting glucose ≤5.5 mmol/L, BMI<25 kg/m2, and without metabolic syndrome, were finally included in the reference group. The following insulin resistance indices were calculated: HOMA1-IR, HOMA2, HOMA2 from C-peptide, QUICKI, Matsuda Index and Insulin Secretion-Sensitive Index-2. Determination of reference intervals for indirect indices of insulin resistance was conducted in accordance with the C28-A3 procedure recommended by the Clinical & Laboratory Standards Institute (CLSI). Results. The reference intervals for indirect insulin resistance indices examined according to CLSI protocol were: ≤4.00, ≤2.27, ≤4.10, ≥0.31 for HOMA1-IR, HOMA2, HOMA2 C-pep., and QUICKI, respectively. For insulin sensitivity, the value of the Matsuda Index was established as ≥3.19 and for beta cell pancreatic function ISSI-2 as ≥206. Conclusions. Establishing a reference intervals for these indices enable the proper identification and differentiation of the types of insulin resistance in particular populations. The early detection of metabolic disorders allows for introduction of effective preventive action.
Źródło:: Annals of Agricultural and Environmental Medicine; 2020, 27, 2; 248-254
1232-1966
Pojawia się w:: Annals of Agricultural and Environmental Medicine
Dostawca treści:: Biblioteka Nauki