Wyniki wyszukiwania - Biblioteka Nauki

Nowa wersja platformy, zawierająca wyłącznie zasoby pełnotekstowe, jest już dostępna.
Przejdź na https://bibliotekanauki.pl

Ograniczanie wyników

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Sortuj według:

Ogranicz wyniki do:

„Człowiekiem się rodzę, osobą się staję”. Relacje semantyczne między leksemami osoba i człowiek we współczesnej polszczyźnie

100%

Kostrzewa D.

LingVaria : Półrocznik Wydziału Polonistyki UJ poświęcony zagadnieniom języka i językoznawstwa

2013

nr 1(15)

43-58

The paper attempts to determine the scope of realization of two synonymous words in modern Polish: człowiek/ludzie ‘man/people’, and osoba/osoby ‘person/persons’. A semantic analysis of the two has been conducted based on lexicographic sources and corpus texts, and led to the conclusion that no hierarchy exists in the semantic relation between them. Due to its stylistic neutrality, accommodation requirements, and deviation of reference towards the feminine gender, the understanding of the lexeme osoba ‘person’ complements the semantic field of the word człowiek ‘man’, which is marked for all aspects and directed towards description of representatives of the masculine gender. Moreover, having no stylistic connotations, the lexeme osoba ‘person’ is very frequent in journalistic texts, much more so than the noun człowiek ‘man’.

Supercritical carbon dioxide hops extracts with antimicrobial properties

38%

Rój E. , Tadić V. M. , Mišić D. , Žižović I. , Arsić I. , Dobrzyńska-Inger A. , Kostrzewa D.

Open Chemistry

2015

tom 13

nr 1

Extracts obtained from hops (Humulus lupulus L., Cannabaceae) by supercritical fluid extraction (SFE), SFE followed by isomerization, as well as by conventional technique, were investigated for their chemical composition and antibacterial activity against selected foodborne pathogens and microorganisms capable to cause the food spoilage. The antibacterial activity of the extracts was compared with the antibacterial activity of xanthohumol, compound known for its broad pharmacological properties, isolated from the raw material remained after the SFE. Xanthohumol (XH, 96%) proved to posses the most prominent activity against all the tested strains, with the MIC values ranged between 2.5 and 20 μg mL-1. Supercritical hops extract and potassium isomerized supercritical hops extract showed strong antibacterial activity against the tested strains as well. Escherichia coli was not affected by the extracts, meaning that their oral admission would not cause the same problem as antibiotic application in intestinal flora. The chemical composition of the investigated hops extracts was analysed by GC-MS. Contents of α-acids, β-acids, iso-α-acids and xanthohumol in the samples were determined by HPLC.