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Wyświetlanie 1-7 z 7
Tytuł:
Bioactivity of PLGA-gel-derived bioglass composites
Autorzy:
Łączka, M.
Maślanka, E.
Pawlik, J.
Dziadek, M.
Zagrajczuk, B.
Cholewa-Kowalska, K.
Powiązania:
https://bibliotekanauki.pl/articles/93122.pdf
Data publikacji:
2018
Wydawca:
Państwowa Wyższa Szkoła Zawodowa w Tarnowie
Tematy:
polymer-ceramic composite
bioactive property
kompozyt polimerowo-ceramiczny
właściwość bioaktywna
Opis:
A series of PLGA (poly L-lactide-co-glycolide) based composites modified with gel-derived glasses in the form of foils were obtained by solvent casting procedure. As a modifier, glass particles with different chemical compositions from the CaO–SiO2, CaO–P2O5–SiO2,and Al2O3–SiO2 systems were used. All glasses were synthesized by the sol-gel process. Evaluation of bioactive properties of obtained composites was made on the basis of surface changes occurring during contact with simulated body fluid. The changes of Ca, P and Si ions concentration in SBF after incubation of composites were also measured. The result showed that all composites with bioglasses (CaO–SiO2, CaO–P2O5–SiO2) exhibit formation of calcium phosphates layer after SBF test, however, kinetics of Ca, Si ion release and P uptake from SBF was dependent on bioglass chemical composition. The higher solubility, as well as faster consumption of phosphorus from SBF, was observed for materials from CaO–SiO2 (T1/PLGA, S1/PLGA) compared to composites with respective bioglass particles from the CaO–P2O5–SiO2(T2/PLGA, S2/PLGA). Our results showed that rate of Si and Ca release from the gel-derived glasses and P uptake from SBF are dependent on both: the concentration of respective ions in the materials and the presence of phosphates in their structure. For materials modified with gel-derived glasses from Al2O3–SiO2 system no significant surface changes during contact with SBF were observed, and it seems that their behavior in physiological solution indicate that they are bio-inert materials.
Źródło:
Science, Technology and Innovation; 2018, 3, 2; 27-34
2544-9125
Pojawia się w:
Science, Technology and Innovation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Selected Issues of QoS Provision in Heterogenous Military Networks
Autorzy:
Hauge, M.
Landmark, L.
Łubkowski, P.
Amanowicz, M.
Maślanka, K.
Powiązania:
https://bibliotekanauki.pl/articles/226154.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
E2E QoS
connectivity
routing
heterogenous networks
Opis:
Tactical ad-hoc networks are evolving today towards complex heterogeneous networks in terms of architecture, protocols and security. Due to the difference in network resources and reliability, end-to-end quality of service provisioning becomes very challenging. If we also take into account communication issues such as unpredictable connectivity, preferential forwarding for special traffic classes, intermittency due to node or communication link failure, the problem is further aggravated. In this article, we examine the major challenges that must be solved in order to provide efficient QoS provisioning in the heterogeneous network. Finally we describe QoS-aware mechanisms for inter-domain and intra-domain heterogeneous networks, also including real-time services provision in highly mobilr environments.
Źródło:
International Journal of Electronics and Telecommunications; 2014, 60, 1; 7-13
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Prostaglandin E2 inhibits IL-10 production by bovine CD4plus T cells
Autorzy:
Zuska-Prot, M.
Maslanka, T.
Jasiecka, A.
Jaroszewski, J.J.
Powiązania:
https://bibliotekanauki.pl/articles/31834.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:
Although prostaglandin E₂ (PGE₂) is a pro-inflammatory mediator, it also produces some effect which is anti-inflammatory in character. It is suggested that one of the mechanisms responsible for the latter effect is the increased synthesis of IL-10. The aim of this study has been to determine the influence of PGE₂ on IL-10 production by bovine CD⁴⁺ and CD⁸⁺ T cells and NK cells. With this aim, peripheral blood mononuclear cells collected from 12-month-old heifers (n = 10) were treated without or with PGE₂ (10⁻⁶ M). Flow cytometric analysis showed that PGE₂ caused a reduction in the percentage of IL-10 producing CD⁴⁺ T cells (P < 0.001), while leaving the secretion of this cytokine by CD⁸⁺ T cells and NK cells unaffected. This seems to indicate that PGE₂ in cattle does not produce an anti-inflammatory effect by increasing the synthesis of IL-10; contrary to this, it may aggravate an inflammatory response by inhibiting the secretion of this cytokine by CD⁴⁺ T cells.
Źródło:
Polish Journal of Veterinary Sciences; 2014, 17, 3
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
L’oltretomba virgiliano e dantesco a confronto: qualche osservazione sul dialogo intertestuale nel Purgatorio
Autorzy:
Maślanka-Soro, Maria
Powiązania:
https://bibliotekanauki.pl/articles/638307.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Jagielloński. Wydawnictwo Uniwersytetu Jagiellońskiego
Tematy:
Dante, Virgil, Purgatory, Aeneid, earthly paradise, Elysium, intertextual approach
Opis:
The purpose of this paper is to present an analysis of certain episodes and motifs of Dante’s Purgatory which were partly inspired by the idea of the Otherworld and the category of space in the Book VI of Virgil’s Aeneid. In particular we examine the episode which takes place in the Valley of the Rulers (Pg. VII) and the concept of Dante’s Earthly Paradise to confront them with the idea of Virgilian Elysium. The intertextual dialogue of the Italian poet with the author of the Aeneid is sometimes polemical and based on aemulatio rather than on imitatio.
Źródło:
Romanica Cracoviensia; 2015, 15, 4
2084-3917
Pojawia się w:
Romanica Cracoviensia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
“Se fede merta nostra maggior musa” : Virgilio e la mitologia virgiliana nella Commedia allo specchio del cristianesimo dantesco
Autorzy:
Maślanka-Soro, Maria
Powiązania:
https://bibliotekanauki.pl/articles/638177.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Jagielloński. Wydawnictwo Uniwersytetu Jagiellońskiego
Tematy:
Dante, Virgil, Divine Comedy, Aeneid, mythology, intertextuality, conception of art
Opis:
The Aeneid is the most important intertext for the opus magnum of Dante; and Virgil, sometimes metonymically identified with his work, plays a relevant, or indeed crucial part as one of the characters in it. The main purpose of this article is, on the one hand, an analysis and interpretation of certain, only rarely investigated aspects of the relation between Virgil and Dante the pilgrim, in particular those which deal with the defeat of the former as an authority and guide for Dante on the road to spiritual perfection. They result mainly from Virgil’s excessive rationalism. In the critical moments of their journey through the otherworld Dante the author shows the frailty of Virgil’s Christian faith, attained only after his death and not illuminated by divine Grace; he also discloses the deficiencies in Virgil’s understanding of good and evil. On the other hand the author of the article analyses the intertextual “dialogue” that the Comedy conducts with the Aeneid on the basis of the Dantean conception of art in general, and of poetry in particular, taking selected examples into consideration. An essential component of this dialogue is Dante’s reinterpretation of Virgil’s masterpiece, which assumes the form of an aemulatio and tends to reveal the Christian potentiality in the Aeneid, of which Virgil the poet was, of course, utterly unaware.
Źródło:
Romanica Cracoviensia; 2013, 13, 4
2084-3917
Pojawia się w:
Romanica Cracoviensia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Preferencje i czestotliwosc spozycia produktow mlecznych wsrod mlodych kobiet
Autorzy:
Babicz-Zielinska, E
Powiązania:
https://bibliotekanauki.pl/articles/825867.pdf
Data publikacji:
1999
Wydawca:
Polskie Towarzystwo Technologów Żywności
Tematy:
kefir
czestotliwosc spozycia
maslanka
przetwory mleczne
spozycie zywnosci
preferencje pokarmowe
mleko
ludzie mlodzi
biojogurt
kobiety
jogurt
zywienie czlowieka
consumption frequency
buttermilk
dairy product
food intake
food preference
milk
young people
bioyoghourt
woman
yoghourt
human nutrition
Opis:
Badania preferencji i częstotliwości spożycia mleka i jego przetworów prowadzono w grupie 162 młodych kobiet, w tym 32 kobiet ciężarnych. Stwierdzono wysoką preferencję jogurtów i biojogurtów owocowych, twarożków owocowych i serka granulowanego oraz sera twardego. Najczęściej spożywanymi produktami były sery twarde, jogurty i biojogurty owocowe i twarożki z dodatkiem owoców. Stan ciąży wpływał na większe preferencje i spożycie napojów kwaśnych, jak maślanka i kefir oraz o dużej zawartości tłuszczu, jak mleko skondensowane. Korelacja między preferencją, a spożyciem była istotna w całej badanej grupie. Najbardziej ważkimi czynnikami wyboru były te związane z produktem: świeżość, smak, jakość, trwałość. Konieczność racjonalnego odżywiania, zawartość tłuszczu i nowość na rynku miały istotnie większe znaczenie dla kobiet ciężarnych, niż dla pozostałych.
Study on preferences and eating frequency for milk and dairy products was made among 162 young women, including 32 pregnant ones. The high preferences for fruit yoghurts and bio-yoghurts, fruit junkets, cottage cheese and hard cheese were observed. The hard cheese, fruit yoghurts and bio-yoghurts, and fruit junkets were mostly eaten. Pregnancy resulted in higher preference and intake of sour milk beverages, like kefir and buttermilk, and high-fat beverages, like condensed milk. Correlation between preference and consumption was significant for total sample. The most significant choice factors included: freshness, taste, quality and stability. Rational nutrition, fat content and novelty on the market were more important for pregnant women.
Źródło:
Żywność Nauka Technologia Jakość; 1999, 06, 3; 130-138
1425-6959
Pojawia się w:
Żywność Nauka Technologia Jakość
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
La finzione autobiografica tra mistificazione e paradigma universale nel Secretum meum di Petrarca
Autobiographical Fiction: Between Mystification and the Universal Paradigm in Petrarch’s Secretum Meum
Autorzy:
Maślanka-Soro, Maria
Powiązania:
https://bibliotekanauki.pl/articles/34670940.pdf
Data publikacji:
2024-06-30
Wydawca:
Wydawnictwo Adam Marszałek
Tematy:
Petrarch
Secretum meum
autobiographical fiction
mystification
universal paradigm
Petrarca
finzione autobiografica
mistificazione
paradigma universale
Opis:
Petrarch’s customary reliance on autobiographical themes serves as a guiding principle to nearly all of his works. The Secretum meum is perhaps his most autographical text. It is a treatise in the form of a dialogue in which the speakers, Francesco and Augustine, are characters alluding to Petrarch and St Augustine. The analogies between their respective itinera conversionis determine the strategies endorsing their paradigmatic dimension. In this article, I show that Petrarch uses his own individual case as a point of departure to embark on general discourse; that the Augustinian conflict between ‘the inner man’ and ‘the outer man’ serves as the framework for the construction of the dialogue; and that the story of Francesco’s moral crisis and his attempts to surmount it assume a universal meaning. I also discuss Petrarch as a master of mystification, brilliant at conjuring up an image of himself and cultivating his autobiographical myth built up of a blend of fact and fiction. From the very outset, the reader is up against an instance of unintended internal mystification: Augustine accuses Francesco of unwitting self-deception regarding his deplorable moral condition. By the end of the Secretum, Francesco manages to renounce his weaknesses, recovers his selfcontrol, and resolves to lead a life of virtue. However, Augustine is not at all sure whether his therapeutic methods have indeed worked. Perhaps writing will be the best remedy.
Per Petrarca l’autobiografismo diventa il filo conduttore di quasi tutta la produzione letteraria. L’opera più autobiografica è forse il Secretum meum, trattato in forma di dialogo i cui interlocutori, Francesco e Agostino, alludono a Petrarca e a sant’Agostino. Le analogie tra l’iter conversionis dell’uno e dell’altro sono strategie che confermano la dimensione paradigmatica di entrambi. Nell’articolo si cerca di dimostrare come Petrarca a partire da un caso individuale sviluppa un discorso generale, come il conflitto agostiniano tra “uomo interiore” e “uomo esteriore” costituisce un’asse portante intorno alla quale è costruito il dialogo e come si universalizza la storia della crisi morale di Francesco e dei tentativi di superarla. Inoltre, l’articolo ha come obiettivo presentare Petrarca come geniale mistificatore che ha saputo creare la propria immagine e coltivare il mito autobiografico in cui confonde verità e finzione. Fin dall’inizio si ha a che fare anche con la mistificazione interna non intenzionata, in quanto Agostino accusa Francesco di ingannare se stesso sul motivo della propria miseria morale, senza esserne consapevole. Il proposito da parte di Francesco di abbandonare le proprie debolezze riacquistando il dominio di sé si fa faticosamente strada verso la fine del Secretum, ma Agostino non ha nessuna certezza che i suoi metodi „terapeutici” siano stati efficaci. Forse la cura reale è la scrittura.
Źródło:
Italica Wratislaviensia; 2024, 15.1; 219-237
2084-4514
Pojawia się w:
Italica Wratislaviensia
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-7 z 7

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