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Wyświetlanie 1-2 z 2
Tytuł:
Badania nad historią filozofii przyrody i historią nauki
Research in the History of Philosophy of Nature and the History of Science
Autorzy:
Mączka, Janusz
Skoczny, Włodzimierz
Koleżyński, Andrzej
Polak, Paweł
Karolczak, Maria
Sieńko, Dorota
Dziekan, Małgorzata
Powiązania:
https://bibliotekanauki.pl/articles/690554.pdf
Data publikacji:
2012
Wydawca:
Copernicus Center Press
Tematy:
philosophy in science
philosophy of science
history of science
OBI
Opis:
This is a review of research conducted by the Center for Interdisciplinary Studies and the Copernicus Center for Interdisciplinary Studies in the field of the history of philosophy of nature and the history of philosophy of science in Poland in the inter-war period. In spite of the domination of positivistic philosophy that tended to ignore philosophy of nature, this kind of philosophizing was quite popular in Poland. The review begins with a summary of works related to the history of science, and then deals, in some detail, with works on the theory of evolution and the theory of relativity, especially with their philosophical aspects. The remaining part of the review is devoted to the principal personalities of that period, namely: Władysław Heinrich, Władysław Natanson, Tadeusz Grabowski, Marian Smoluchowski, Zygmunt Zawirski and Joachim Metallmann.
Źródło:
Zagadnienia Filozoficzne w Nauce; 2012, 50; 10-40
0867-8286
2451-0602
Pojawia się w:
Zagadnienia Filozoficzne w Nauce
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparison of antibiotic resistance and virulence between biofilm-producing and non-producing clinical isolates of Enterococcus faecium
Autorzy:
Sieńko, Anna
Wieczorek, Piotr
Majewski, Piotr
Ojdana, Dominika
Wieczorek, Anna
Olszańska, Dorota
Tryniszewska, Elżbieta
Powiązania:
https://bibliotekanauki.pl/articles/1038933.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
Enterococcus
biofilm
virulence
resistance
Opis:
An increase in the antibiotic resistance among Enterococcus faecium strains has been observed worldwide. Moreover, this bacteria has the ability to produce several virulence factors and to form biofilm that plays an important role in human infections. This study was designed to compare the antibiotic resistance and the prevalence of genes encoding surface protein (esp), aggregation substance (as), surface adhesin (efaA), collagen adhesin (ace), gelatinase (gelE), and hialuronidase (hyl) between biofilm-producing and non-producing E. faecium strains. Therefore, ninety E. faecium clinical isolates were tested for biofilm-forming ability, and then were assigned to two groups: biofilm-positive (BIO+, n =70) and biofilm-negative (BIO-, n = 20). Comparison of these groups showed that BIO+ isolates were resistant to β-lactams, whereas 10% of BIO- strains were susceptible to ampicillin (statistically significant difference, p = 0.007) and 5% to imipenem. Linezolid and tigecycline were the only antibiotics active against all tested isolates. Analysis of the virulence factors revealed that ace, efaA, and gelE genes occurred more frequently in BIO- strains (ace in 50% BIO+ vs. 75% BIO-; efaA 44.3% vs. 85%; gelE 2.9% vs. 15%, respectively), while hyl gene appeared more frequently in BIO+ isolates (87.1% BIO+ vs. 65% BIO-). These differences were significant (p < 0.05). We concluded that BIO+ strains were more resistant to antibiotics than BIO- strains, but interestingly, BIO- isolates were characterized by possession of higher virulence capabilities.
Źródło:
Acta Biochimica Polonica; 2015, 62, 4; 859-866
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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