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Wyszukujesz frazę "Rybak, Adam" wg kryterium: Autor


Wyświetlanie 1-6 z 6
Tytuł:
Declarative and Behavioral Data in Predicting Respondents Survey Mode Preference
Autorzy:
Rybak, Adam
Powiązania:
https://bibliotekanauki.pl/articles/1790392.pdf
Data publikacji:
2020-06-24
Wydawca:
Polskie Towarzystwo Socjologiczne
Tematy:
European Social Survey
survey mode preference
mixed-mode survey design
adaptive survey design
Opis:
Using previously established knowledge about survey mode preferences distribution in a population can be one of many ways of improving representativeness and quality of data gathered by survey research. Apart from mode preference existence and stability, the main problem concerns the question: which of the sources of information about mode preference could be treated as trustworthy. Because real observed choices are typically treated as better predictors of future choices than declaration only, this paper tries to answer the question: ‘Are the declarations a good predictor of preference in comparison to real choices?’ For this purpose, it uses combined data from 1) the 2015 Polish mixed-mode ESS experiment and 2) data from ESS8 in Poland. The multinomial logistic regression survey preference model includes socio-demographic variables accompanied by declaration/choice control variable. The results suggest significant differences between choices/declarations. Findings could be used to refine the contact strategies used in surveys.
Źródło:
Polish Sociological Review; 2020, 210, 2; 219-228
1231-1413
2657-4276
Pojawia się w:
Polish Sociological Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Measurement of the upper respiratory tract aerated space volume using the results of computed tomography
Autorzy:
Rybak, Adam
Zając, Andrzej
Kukwa, Andrzej
Powiązania:
https://bibliotekanauki.pl/articles/221767.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
CT studies
upper respiratory tract diagnostics
quantitative measurement of upper respiratory tract aerated space volume
Opis:
The paper presents the possibilities of quantitative analysis of results obtained from CT examination of organs and anatomical structures of the upper respiratory tract. The presented results of the analysis were obtained using proprietary software developed in the MATLAB 2018b environment (Image Processing toolbox). The software enables to visualize the original results of CT scan and, after evaluating the visible structures, enables to select the area to be subjected to quantitative analysis. After the initial identification of an area of interest requiring detailed diagnostics, its volume and the surface areas of individual cross-sections are calculated in the area separated for examinations. A graphical presentation of the analysis results - the surface areas of selected cross-sections possible to visualize in two- and three-dimensional space - enables quick analysis of changes in the examined region.
Źródło:
Metrology and Measurement Systems; 2019, 26, 2; 387-401
0860-8229
Pojawia się w:
Metrology and Measurement Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Anatomical and functional assessment of patency of the upper respiratory tract in selected respiratory disorders - Part 2
Autorzy:
Zając, Andrzej
Kukwa, Andrzej
Barański, Robert
Nitkiewicz, Szymon
Zomkowska, Edyta
Rybak, Adam
Powiązania:
https://bibliotekanauki.pl/articles/2173877.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
optical diagnostic in otolaryngology
upper respiratory tract diagnostics
otolaryngology
spirometer
Fourier transform
wavelet transform
quantitative parameters of the respiratory cycle
Opis:
This article presents selected physical diagnostic methods used in otorhinolaryngology and results of their application. In addition to the applications of methods using the capabilities of selective sensors, selected methods of hybrid diagnostics were also presented - for assessment of parameters of respiratory processes, with polysomnography as an example of using both typical diagnostic methods dedicated to otolaryngology, as well as standard EEG and ECG methods. It has been shown that in some special cases of respiratory disorders, measurements of the air flow in the respiratory tract can be supplemented with pressure measurements in selected positions within the airways. The presented optical methods and diagnostic systems are very often used in the diagnosis of diseases not specific for otolaryngology occurring in the area of the head and neck. The presented material is the second part of the study discussing both standard and widely used diagnostic methods. All presented methods are dedicated to otolaryngology. This text is a continuation of the material published in No 4 of 2021 [1].
Źródło:
Metrology and Measurement Systems; 2022, 29, 3; 429--454
0860-8229
Pojawia się w:
Metrology and Measurement Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Anatomical and functional assessment of patency of the upper respiratory tract in selected respiratory disorders - Part 1
Autorzy:
Kukwa, Andrzej
Zając, Andrzej
Barański, Robert
Nitkiewicz, Szymon
Kukwa, Wojciech
Zomkowska, Edyta
Rybak, Adam
Powiązania:
https://bibliotekanauki.pl/articles/2052154.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
optical diagnostic in otolaryngology
upper respiratory tract diagnostics
otolaryngology
spirometer
Fourier transform
wavelet transform
quantitative parameters of the respiratory cycle
Opis:
The rapidly developing measurement techniques and emerging new physical methods are frequently used in otolaryngological diagnostics. A wide range of applied diagnostic methods constituted the basis for the review study aimed at presenting selected modern diagnostic methods and achieved diagnostic results to a wider group of users. In this part, the methods based on measuring the respiratory parameters of patients were analysed. Respiration is the most important and necessary action to support life and its effective duration. It is an actual gas exchange in the respiratory system consisting of removing CO2 and supplying O2. Gas exchange occurs in the alveoli, and an efficient respiratory tract allows for effective ventilation. The disruption in the work of the respiratory system leads to measurable disturbances in blood saturation and, consequently, hypoxia. Frequent, even short-term, recurrent hypoxia in any part of the body leads to multiple complications. This process is largely related to its duration and the processes that accompany it. The causes of hypoxia resulting from impaired patency of the respiratory tract and/or the absence of neuronal respiratory drive can be divided into the following groups depending on the cause: peripheral, central and/or of mixed origin. Causes of the peripheral form of these disorders are largely due to the impaired patency of the upper and/or lower respiratory tract. Therefore, early diagnosis and location of these disorders can be considered reversible and not a cause of complications. Slow, gradually increasing obstruction of the upper respiratory tract (URT) is not noticeable and becomes a slow killer. Hypoxic individuals in a large percentage of cases have a shorter life expectancy and, above all, deal with the consequences of hypoxia much sooner.
Źródło:
Metrology and Measurement Systems; 2021, 28, 4; 813-836
0860-8229
Pojawia się w:
Metrology and Measurement Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
New chitosan wound dressing – first step - the cytotoxicity evaluation
Autorzy:
Karuga, Ewa
Zając, Adam
Rybak, Zbigniew
Hanuza, Jerzy
Powiązania:
https://bibliotekanauki.pl/articles/1034845.pdf
Data publikacji:
2015
Wydawca:
Sieć Badawcza Łukasiewicz - Polskie Towarzystwo Chitynowe
Tematy:
chitosan
cytotoxicity
wound dressing
Opis:
The cytotoxicity of chitosan with polyvinox (PCH) and crosslinked chitosan (CH) was studied and analyzed. Cell viability was determined by thiazolyl blue formazan (MTT) assay and cell morphology observations were carried out during cell culturing and MTT tests. Crosslinked chitosan was used as a protective foil (scaffold) for skin wounds. Studies in vitro and the other obtained in this work results prove that the studied materials CH and PCH do not cause cytotoxic activity to Balb 3T3 mouse fibroblasts. CH and PCH are promising biomaterials with prospective application as wound healing dressings.
Źródło:
Progress on Chemistry and Application of Chitin and its Derivatives; 2015, 20; 97-109
1896-5644
Pojawia się w:
Progress on Chemistry and Application of Chitin and its Derivatives
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
CD40 stimulation induces differentiation of acute lymphoblastic leukemia cells into dendritic cells
Autorzy:
Łuczyński, Włodzimierz
Stasiak-Barmuta, Anna
Iłendo, Elżbieta
Krawczuk-Rybak, Maryna
Malinowska, Iwona
Mitura-Lesiuk, Małgorzata
Parfieńczyk, Adam
Szymański, Marcin
Powiązania:
https://bibliotekanauki.pl/articles/1041252.pdf
Data publikacji:
2006
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
immunotherapy
T-lymphocytes
CD40L
acute lymphoblastic leukemia
dendritic cells
Opis:
Despite the very high percentage of long-term remissions in acute lymphoblastic leukemia (ALL) in children, some of them suffer from recurrence of the disease. New treatment modalities, e.g. effective geno- and immunotherapy are needed. The use of neoplasmatic cells to present tumor antigens is one of the approaches in cancer vaccines. ALL cells lack the expression of costimulatory molecules and are poor antigen presenting cells (APCs) for T-cell activation. CD40/40L interaction stimulates B-cells to proliferate, differentiate, upregulate costimulatory molecules and increase antigen presentation. The aim of the study was to test the hypothesis that ALL cells can be turned into professional APCs by CD40L activation. Children with B-cell precursor ALL were enrolled into the study. Mononuclear cells from bone marrow or peripheral blood were stimulated with CD40L and interleukin 4. Results: 1) after culture we noted upregulation of all assessed costimulatory, adhesion and activatory molecules i.e. CD1a, CD11c, CD40, CD54, CD80, CD83, CD86, CD123, HLA class I and II; 2) CD40L activated ALL cells induced proliferation of allogeneic T-cells (measured by [3H]thymidine incorporation). These results confirm the possibility of enhancing the immunogenicity of ALL cells with the CD40L system and indicate that this approach can be used in immunotherapeutic trials.
Źródło:
Acta Biochimica Polonica; 2006, 53, 2; 377-382
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-6 z 6

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