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    Wyświetlanie 1-12 z 12
    Tytuł:
    A Stigmatising Stereotype or a Universal Gap in Expectations? Lessons in Mathematics in the Perception of Polish and Ukrainian Students
    Autorzy:
    Turska, Dorota
    Powiązania:
    https://bibliotekanauki.pl/articles/26469815.pdf
    Data publikacji:
    2013-03-31
    Wydawca:
    Wydawnictwo Adam Marszałek
    Tematy:
    stereotypes
    mathematics as a domain for males
    interpersonal expectations
    Opis:
    Referring to the results of the authors’ own research published in The New Educational Review (Turska, Bernacka 2010; Turska 2011), this article attempts at competitive verification of a hypothesis that explains differences in the perception of a mathematics teacher by Polish male and female students in view of a popular stereotype that Mathematics is a domain for males. It was assumed that diverse perceptions may result from different interpersonal expectations of the two genders. A comparative study carried out on a group of Ukrainians, established in accordance with the principles of ecological validity, seems to further substantiate the stigmatising effect of the stereotype in Poland.
    Źródło:
    The New Educational Review; 2013, 31; 263-272
    1732-6729
    Pojawia się w:
    The New Educational Review
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Derivative and antiderivative operators and the size of complex domains
    Autorzy:
    Bernal-González, Luis
    Powiązania:
    https://bibliotekanauki.pl/articles/1311689.pdf
    Data publikacji:
    1994
    Wydawca:
    Polska Akademia Nauk. Instytut Matematyczny PAN
    Tematy:
    universal function
    equicontinuous sequence
    derivative operator
    antiderivative operator
    MacLane's theorem
    size of a domain
    Opis:
    We prove some conditions on a complex sequence for the existence of universal functions with respect to sequences of certain derivative and antiderivative operators related to it. These operators are defined on the space of holomorphic functions in a complex domain. Conditions for the equicontinuity of those sequences are also studied. The conditions depend upon the size of the domain.
    Źródło:
    Annales Polonici Mathematici; 1994, 59, 3; 267-274
    0066-2216
    Pojawia się w:
    Annales Polonici Mathematici
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    SCREENING THE SPECIFIC SUBSTRATES OF ADENYLATION DOMAIN FROM MARINE ACTINOMYCETES BY FLUORESCENCE QUENCHING AND ISOTHERMAL TITRATION CALORIMETRY
    Autorzy:
    LEI, MING
    ZHAO, ZHIJUAN
    LIU, KE
    LIU, YANLI
    ZHANG, HUI
    WU, XUE
    GONG, SIYING
    MA, YANLING
    ZHAO, HAOBIN
    LIU, JINLIN
    MIN, JINRONG
    QI, CHAO
    Powiązania:
    https://bibliotekanauki.pl/articles/895432.pdf
    Data publikacji:
    2018-12-31
    Wydawca:
    Polskie Towarzystwo Farmaceutyczne
    Tematy:
    A domain
    Aspartic acid
    Fluorescence quenching (FQ)
    Isothermal titration calorimetry (ITC)
    Marine actinomycetes
    static quenching
    Opis:
    Adenylation domain (A domain) is a model of non-ribosomal peptide synthetases (NRPs), responsible for binding and activating the substrates-amino acids. In this study, a pGEX-2T-sare0718 recombinant plasmid (the gene sare0718 was cloned from Salinispora arenicola CNS-205, S.arenicola CNS-205) was transformed and expressed as a protein GST-Sare0718. Fluorescence quenching (FQ) was conducted to investigate the binding of 20 common amino acids to GST-Sare0718, then isothermal titration calorimetry (ITC) also be used[changed]. The results of FQ revealed that intrinsic fluorescence of GST-Sare0718 is quenched steadily by addition of aspartic acid (Asp) and glutamine (Gln) through static quenching mechanism. The binding constants Ka are Asp (1.504×106 L/mol) ≥ Gln (1.468×105 L/mol). And there is one binding site on the protein GST-Sare0718. We confirmed Asp preference of GST-Sare0718 by ITC. Therefore, Asp is the specific substrate. In addition, the experimental data indicates that the prediction system, “the specificity-conferring code”, is not suitable for marine actinomycetes. So it is urgent to set up a special predictive system for marine actinomycetes.
    Źródło:
    Acta Poloniae Pharmaceutica - Drug Research; 2018, 75, 6; 1287-1292
    0001-6837
    2353-5288
    Pojawia się w:
    Acta Poloniae Pharmaceutica - Drug Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Poczucie autoskuteczności w matematyce uczniów i uczennic
    Sense of Self-efficacy in Mathematics of Male and Female Students
    Autorzy:
    Turska, Dorota
    Powiązania:
    https://bibliotekanauki.pl/articles/26443930.pdf
    Data publikacji:
    2013-06-30
    Wydawca:
    Wydawnictwo Adam Marszałek
    Tematy:
    stereotype
    mathematics as a domain for males
    a lower secondary school
    two-factor analysis of variance
    mathematics self-efficacy
    Opis:
    Women’s underrepresentation in strictly technical fields of study closely linked to mathematics is a universal phenomenon, registered not only in Poland. Conclusions from numerous educational reports are worldwide as well – it is girls who preponderate over boys in math grades at every stage of education. Furthermore, in Polish conditions, the results of external exams are not significantly diversified by gender. Thus, the consequences of different evaluation systems do not explicate the so-called „women gender gap” in terms of women academic and vocational choices. In Poland, for a few years there has been attempts to counteract the prevailing trend through „The Girls for Engineers” programme or systems of scholarships for female students of technical and scientific studies. Such activities are claimed to be legitimate, though still insufficient, because they focus on diminishing the symptoms of the phenomenon, regardless of its exact causes. The explanation proposed in the article refers to the effects of stereotype that „maths is a domain for males”. It has been assumed that such stereotype has an adverse impact on the perception of one’s competences of stigmatized people – i.e. girls. Such facet of analysis has not been adopted in Polish educational research so far. Theoretical background of own research constitute self-efficacy theory by Albert Bandura, which emphasizes cultural context of its formation process. The obtained results indicate that gender is a significant factor contributing to the sense of efficacy formed on the basis of specific achievements in mathematics. It indicates that a typical female student – in relation to similarly assessed typical male student – registers lower trust to her own mathematical competences. Discussion depicted the way in which unfavourable self-perception corresponds to motivation for learning mathematics and consequently to educational choices. The direction for further research has been indicated.
    Źródło:
    Kultura i Edukacja; 2013, 3(96); 98-115
    1230-266X
    Pojawia się w:
    Kultura i Edukacja
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Preoperative treatment with botulinum toxin A: a tool for giant groin hernia repair? Case report
    Autorzy:
    Avellana, Rocio
    Peña, Maria Jesus
    Saez, Patricia
    Cabeza, Juan
    Torres, Antonio
    Powiązania:
    https://bibliotekanauki.pl/articles/1391555.pdf
    Data publikacji:
    2021
    Wydawca:
    Index Copernicus International
    Tematy:
    botulinum toxin A
    giant groin hernia
    loss of domain
    Opis:
    Introduction: Giant groin hernia is an unusual disease nowadays and its management can be a challenge for surgeons. The application of botulinum toxin A as a preoperative therapy could decrease the thickness of the lateral wall muscles, increase their length and increase the volume of the abdominal cavity facilitating the surgical repair. Morbidity and mortality due to high intra-abdominal pressure would decrease, allowing a minimal tension closure after reduction of the herniated viscera. Case report: We present the repair of two cases of massive inguinal hernia with loss of domain using preoperative abdominal wall injection of botulinum toxin.
    Źródło:
    Polish Journal of Surgery; 2021, 93, 4; 70-73
    0032-373X
    2299-2847
    Pojawia się w:
    Polish Journal of Surgery
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A new closed-form formula for calculating a weakly singular static potential integral with linear current source distribution on a triangle
    Autorzy:
    Grytsko, Anna
    Słobodzian, Piotr
    Powiązania:
    https://bibliotekanauki.pl/articles/2204516.pdf
    Data publikacji:
    2023
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    static vector potential integral
    linear current source distribution
    analytic integration
    isoparametric transformation
    integration over a triangular domain
    weakly singular integral
    statyczna wektorowa całka potencjalna
    liniowy rozkład źródła prądu
    integracja analityczna
    słabo osobliwe całki
    transformacja izoparametryczna
    integracja w domenie trójkątnej
    Opis:
    The article presents a closed-form formula for solving a weakly singular surface integral with a linear current source distribution associated with the SIE-MoM formulation used for solving electromagnetic (EM) problems. The analytical formula was obtained by transforming the surface integral over a triangular domain into a double integral, and then directly determining formulas for the inner and outer integrals. The solution obtained is marked by high computational efficiency, high accuracy, and very simple implementation. The derived formula, in contrast to the currently available formulas, consists of quantities that have a clear and simple geometric interpretation, related to the geometry of the computational domain.
    Źródło:
    Bulletin of the Polish Academy of Sciences. Technical Sciences; 2023, 71, 1; art. no. e143645
    0239-7528
    Pojawia się w:
    Bulletin of the Polish Academy of Sciences. Technical Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Classical solutions of mixed problems for quasilinear first order PFDEs on a cylindrical domain
    Autorzy:
    Czernous, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/255887.pdf
    Data publikacji:
    2014
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    partial functional differential equations
    classical solutions
    local existence
    characteristcs
    cylindrical domain
    a priori estimates
    Opis:
    We abandon the setting of the domain as a Cartesian product of real intervals, customary for first order PFDEs (partial functional differential equations) with initial boundary conditions. We give a new set of conditions on the possibly unbounded domain Ω with Lipschitz differentiable boundary. Well-posedness is then reliant on a variant of the normal vector condition. There is a neighbourhood of ∂Ω with the property that if a characteristic trajectory has a point therein, then its every earlier point lies there as well. With local assumptions on coefficients and on the free term, we prove existence and Lipschitz dependence on data of classical solutions on (0,c)×Ω to the initial boundary value problem, for small c. Regularity of solutions matches this domain, and the proof uses the Banach fixed-point theorem. Our general model of functional dependence covers problems with deviating arguments and integro-differential equations.
    Źródło:
    Opuscula Mathematica; 2014, 34, 2; 291-310
    1232-9274
    2300-6919
    Pojawia się w:
    Opuscula Mathematica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    On the convergence of domain decomposition algorithm for the body with thin inclusion
    Autorzy:
    Styahar, A.
    Savula, Y.
    Powiązania:
    https://bibliotekanauki.pl/articles/386798.pdf
    Data publikacji:
    2015
    Wydawca:
    Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
    Tematy:
    elasticity theory
    Timoshenko shell theory
    Steklov-Poincare operator
    domain decomposition
    teoria sprężystości
    teoria Tymoszenki
    operator Steklova-Poincare'a
    Opis:
    We consider a coupled 3D model that involves computation of the stress-strain state for the body with thin inclusion. For the description of the stress-strain state of the main part, the linear elasticity theory is used. The inclusion is modelled using Timoshenko theory for shells. Therefore, the dimension of the problem inside the inclusion is decreased by one. For the numerical solution of this problem we propose an iterative domain decomposition algorithm (Dirichlet-Neumann scheme). This approach allows us to decouple problems in both parts and preserve the structure of the corresponding matrices. We investigate the convergence of the aforementioned algorithm and prove that the problem is well-posed.
    Źródło:
    Acta Mechanica et Automatica; 2015, 9, 1; 27-32
    1898-4088
    2300-5319
    Pojawia się w:
    Acta Mechanica et Automatica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    3D domain swapping – implications for conformational disorders and ways of control
    Autorzy:
    Jaskolski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/80151.pdf
    Data publikacji:
    2011
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    3D domain swapping
    amyloid
    crystalline
    cystatin
    fibril
    human cystatin C
    mutagenesis
    oligomerization
    polypeptide chain
    prion protein
    protein aggregation
    protein engineering
    ribonuclease A
    Źródło:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2011, 92, 1
    0860-7796
    Pojawia się w:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Applications and Comparison of Continuous Wavelet Transforms on Analysis of A-wave Impulse Noise
    Autorzy:
    Qin, J.
    Sun, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/177117.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    continuous wavelet transform (CWT)
    impulse noise signal processing
    time-frequency domain
    temporal and spectral resolutions
    noise-induced hearing loss
    A-wave impulse noise
    Opis:
    Noise induced hearing loss (NIHL) is a serious occupational related health problem worldwide. The A-wave impulse noise could cause severe hearing loss, and characteristics of such kind of impulse noise in the joint time-frequency (T-F) domain are critical for evaluation of auditory hazard level. This study focuses on the analysis of A-wave impulse noise in the T-F domain using continual wavelet transforms. Three different wavelets, referring to Morlet, Mexican hat, and Meyer wavelets, were investigated and compared based on theoretical analysis and applications to experimental generated A-wave impulse noise signals. The underlying theory of continuous wavelet transform was given and the temporal and spectral resolutions were theoretically analyzed. The main results showed that the Mexican hat wavelet demonstrated significant advantages over the Morlet and Meyer wavelets for the characterization and analysis of the A-wave impulse noise. The results of this study provide useful information for applying wavelet transform on signal processing of the A-wave impulse noise.
    Źródło:
    Archives of Acoustics; 2015, 40, 4; 503-512
    0137-5075
    Pojawia się w:
    Archives of Acoustics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zur korpusbasierten Vermittlung der Funktionsverbgefüge im DaF-Unterricht. Syntagmatische Muster als „Gebrauchsanleitung“ für Deutschlernende
    Autorzy:
    Piątkowski, Łukasz
    Powiązania:
    https://bibliotekanauki.pl/articles/911971.pdf
    Data publikacji:
    2019-07-29
    Wydawca:
    Uniwersytet im. Adama Mickiewicza w Poznaniu
    Tematy:
    light verb constructions
    German-Polish dictionaries
    The Mannheim German Reference Corpus (DeReKo)
    co-occurrence
    syntagmatic pattern
    language domain
    German as a foreign language lesson
    Opis:
    The aim of the study is to show the possibilities of using corpus analyses for theintroduction of light verb constructions in German during foreign language lessons. The corpus analyses of three selected light verb constructions Maßnahmen ergreifen, einen Beschluss fassen and Bericht erstatten show the co-occurrence of these units and enable the creation of syntagmatic patterns and the allocation of individual light verb constructions to thematic areas. The results of the analysis confirm the thesis that syntagmatic patterns are an aid to learners of German, as they present their use in a sentence and show the partner words with their syntactic function. This method can present the context of use and the thematic area of the light verb constructions. The results of the analyses are also a guideline to placing the syntagmatic patterns in German-Polish dictionaries to help learners to use them and communicate with them correctly
    Źródło:
    Glottodidactica. An International Journal of Applied Linguistics; 2019, 46, 1; 127-144
    0072-4769
    Pojawia się w:
    Glottodidactica. An International Journal of Applied Linguistics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    On the numerical solution of the initial-boundary value problem with neumann condition for the wave equation by the use of the laguerre transform and boundary elements method
    Autorzy:
    Litynskyy, S.
    Muzychuk, Y.
    Muzychuk, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/387128.pdf
    Data publikacji:
    2016
    Wydawca:
    Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
    Tematy:
    boundary integral equation
    time-domain boundary integral equation
    wave equation
    Sobolev spaces
    generalized solution
    retarded surface potentials
    Laguerre transform
    boundary elements method
    metoda elementów brzegowych
    MEB
    przestrzenie Sobolewa
    transformata Laguerre'a
    równanie falowe
    Opis:
    We consider a numerical solution of the initial-boundary value problem for the homogeneous wave equation with the Neumann condition using the retarded double layer potential. For solving an equivalent time-dependent integral equation we combine the Laguerre transform (LT) in the time domain with the boundary elements method. After LT we obtain a sequence of boundary integral equations with the same integral operator and functions in right-hand side which are determined recurrently. An error analysis for the numerical solution in accordance with the parameter of boundary discretization is performed. The proposed approach is demonstrated on the numerical solution of the model problem in unbounded three-dimensional spatial domain.
    Źródło:
    Acta Mechanica et Automatica; 2016, 10, 4; 285-290
    1898-4088
    2300-5319
    Pojawia się w:
    Acta Mechanica et Automatica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-12 z 12

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