Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "17" wg kryterium: Temat

  Lista filtrów
Wyrównaj
Wyświetlanie 1-15 z 111
Tytuł:
Extracellular Biosynthesis and Antimicrobial Activity οf Silver Nanoparticles
Autorzy:
Maliszewska, I.
Puzio, M.
Powiązania:
https://bibliotekanauki.pl/articles/1807637.pdf
Data publikacji:
2009-12
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
87.17.Uv
Opis:
The extracellular synthesis of silver nanoparticles using the cell-free filtrate of Penicilium sp. is reported. Our results suggested that the product could be used as an effective antimicrobial agent.
Źródło:
Acta Physica Polonica A; 2009, 116, S; S-160-S-162
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Biological Synthesis of Gold Nanostructures Using the Extract of Trichoderma koningii
Autorzy:
Maliszewska, I.
Aniszkiewicz, Ł.
Sadowski, Z.
Powiązania:
https://bibliotekanauki.pl/articles/1807583.pdf
Data publikacji:
2009-12
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
87.17.Uv
Opis:
The fungus-mediated synthesis of gold nanoparticles with various shapes and sizes is reported. Shape and size of the products may be controlled using different concentrations of $HAuCl_{4}$.
Źródło:
Acta Physica Polonica A; 2009, 116, S; S-163-S-165
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparative studies on decomposition of selected estrogens and xenoestrogens by photocatalysis processes
Badania porównawcze rozkładu wybranych estrogenów i ksenoestrogenów w procesie fotokatalizy
Autorzy:
Burdzik-Niemiec, E.
Dudziak, M.
Powiązania:
https://bibliotekanauki.pl/articles/388989.pdf
Data publikacji:
2015
Wydawca:
Towarzystwo Chemii i Inżynierii Ekologicznej
Tematy:
photocatalysis
micropollutants decomposition
bisphenol A
17β-estradiol
17α-ethinylestradiol
fotokataliza
rozkład mikrozanieczyszczeń
bisfenol A
17α-etynyloestradiol
Opis:
Comparative Studies on Decomposition of Selected Estrogens and Xenoestrogens by Photocatalysis ProcessesAbstract: This study addressed the degradation efficiency of three different compounds belonging to the group of endocrine disrupting compounds (EDCs), namely 17β-estradiol (E2), 17α-ethinyl estradiol (EE2), and bisphenol A (BPA) in the photocatalysis process (UV/TiO2). The subject of the study was a synthetic municipal waste water treatment plant effluent containing inorganic and optionally organic substances and to which the investigated micropollutants were added at a concentration of 500 μg/dm3. The obtained results were compared in terms of the degradation of the selected compounds in deionized water. It was found that the efficiency of the photocatalysis depends significantly both on the environmental matrix and physico-chemical properties of the compounds present in the treated waste water. The highest degradation efficiency was observed for the synthetic effluent that contained only inorganic substances. The degradation of bisphenol A and 17α-ethinyl estradiol exceeded 90 % (after 60-minute irradiation) and 17β-estradiol was decomposed completely. The observed phenomenon can be attributed to the process termed as sensitized photocatalysis, which was enabled by inorganic substances present in the synthetic waste water. This phenomenon was not observed for the synthetic effluent that contained both inorganic and organic substances, and moreover the degradation efficiency of the micropollutans was lower. These observations were also confirmed by the results regarding the decomposition of the compounds in deionized water. In order to describe the course of photocatalytic oxidation reaction rate constants were determined as well as degradation half-lives using the Langmuir-Hinshelwood kinetic model.
W ramach pracy podjęto badania nad oceną efektywności rozkładu trzech różnych związków należących do grupy substancji zakłócających procesy hormonalne (z ang. Endocrine Disrupters Compounds EDCs), tj. 17β-estradiol (E2), 17α-etynyloestradiol (EE2) oraz bisfenol A (BPA) w procesie fotokatalizy (UV/TiO2). Przedmiotem badań były modelowe odpływy z oczyszczalni ścieków bytowych zawierające substancje nieorganiczne i opcjonalnie organiczne, do których dodawano badane mikrozanieczyszczenia w stężeniu 500 μg/dm3. Uzyskane wyniki badań porównano pod katem skuteczności rozkładu wybranych związków dla wody zdejonizowanej. Wykazano, że na skuteczność procesu fotokatalizy istotny wpływ ma zarówno rodzaj matrycy środowiskowej, jak i właściwości fizykochemicznych usuwanych związków. Najwyższe stopnie rozkładu uzyskano podczas oczyszczania odpływu modelowego zawierającego wyłącznie substancje nieorganiczne. Rozkład bisfenolu A oraz 17α-etynyloestradiolu przekraczał wówczas 90 % (po 60-minutowym czasie naświetlania), a 17β-estradiol został rozłożony całkowicie. Zaobserwowane zjawisko można wytłumaczyć obecnością w ściekach modelowych chemicznych substancji nieorganicznych umożliwiających przebieg tzw. fotokatalizy sensybilizowanej. W przypadku odpływu modelowego zawierającego zarówno substancje organiczne, jak i nieorganiczne tego zjawiska nie obserwowano, a efektywność rozkładu mikrozanieczyszczeń była mniejsza. Powyższe obserwacje potwierdzają również uzyskane wyniki rozkładu związków dla wody zdejonizowanej. W celu opisu przebiegu fotokatalitycznego utleniania wyznaczono stałe szybkości reakcji oraz czasy połowicznego rozkładu posługując się kinetyką modelu Langmuira-Hinshelwooda.
Źródło:
Ecological Chemistry and Engineering. A; 2015, 22, 4; 457-467
1898-6188
2084-4530
Pojawia się w:
Ecological Chemistry and Engineering. A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Thermal degradation of 17-decarboxy-betanin monitored by LC-MS
Autorzy:
Szot, D.
Starzak, K.
Skopińska, A.
Tuwalska, D.
Wybraniec, S.
Powiązania:
https://bibliotekanauki.pl/articles/115566.pdf
Data publikacji:
2014
Wydawca:
Fundacja na Rzecz Młodych Naukowców
Tematy:
17-decarboxy-betanin
betacyanins
thermal degradation
17-dekarboksy-betanina
betacyjaniny
degradacja termiczna
Opis:
A thermal stability study on 17-decarboxy-betanin depending on physicochemical process conditions was conducted. 17-decarboxy-betanin is one of betacyanin, natural origin pigments applied in food and pharmaceutical industry instead of artificial colorants. There is a need for searching of new non-toxic natural food components and this is a reason of increasing interest of betacyanins. As most derivatives of betanin obtained by decarboxylation, 17-decarboxy-betanin tends to degrade in the presence of some factors such as increased temperature or other conditions of the reaction environment [1]. This subject was investigated in this study because the stability of the pigments is still a significant issue limiting their wide application. The degradation of 17-decarboxy-betanin during heating in selected solutions: water as well as aqueous solutions of ethanol 50% (v/v), methanol 50% (v/v) and acetonitrile 50% (v/v) at pH in the range 3-8 was tested. As UV-Vis spectra indicate, 17-decarboxy-betanin tends to degrade mostly at pH 3, notwithstanding a type of solution. The products of degradation were identified by LC-DAD-ESI-MS. As a result of incubation at 85°C in different solutions, various mono-, bi- and tridecarboxylated as well as dehydrogenated derivatives were obtained. The dominant product of 17-de-carboxy-betanin degradation is 2,15,17-tridecarboxy-2,3-dehydro-betanin.
Źródło:
Challenges of Modern Technology; 2014, 5, 3; 32-36
2082-2863
2353-4419
Pojawia się w:
Challenges of Modern Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Micropropagation of walnut (Juglans regia L.)
Autorzy:
Kepenek, K.
Kolağasi, Z.
Powiązania:
https://bibliotekanauki.pl/articles/1065655.pdf
Data publikacji:
2016-07
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
87.17.Uv
87.80.Rb
Opis:
The objective of this work was to establish regeneration protocol for walnut (Juglans regia L.) by multiplication of shoots from axillary buds. Different concentrations of TDZ (0.0, 1.0, 2.5, 5.0 mg/l), IBA (0.0, 1.0, 2.5, 5.0 mg/l) or IBA together with TDZ were investigated to optimize regeneration for the multiplication in the NGE (Sanchez) culture medium. Multiplication rate increased with increased concentration of TDZ or IBA together with TDZ. The highest mean multiplication rate was observed in the fourth subculture with 2.5 mg/l TDZ + 2.5 mg/l IBA reaching 5.33 shoots per explant. The shoots supplemented with 5 mg/l IBA (62.71%) had higher number of rooted shoots than those supplemented with 2.5 mg/l IBA (45.66%). With 73.24% of rooting, the shoots rooted on medium containing 2.5 mg/l IBA after etiolation application had higher number of rooted shoots than those supplemented with 5 mg/l IBA with 64.69% of rooting after etiolation application. The highest mean survival rate of the shoots was observed in 2.5 mg/l TDZ + 2.5 mg/l IBA reaching 35.27%. Results showed that walnut in vitro micropropagation is feasible and the best growth percentage was obtained in 5.0 mg/l TDZ, and 2.5 mg/l TDZ with 2.5 mg/l IBA.
Źródło:
Acta Physica Polonica A; 2016, 130, 1; 150-156
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of Low Frequency Magnetic Field on Germination of Onion (Allium cepa L.) Seeds
Autorzy:
Kubisz, L.
Hołubowicz, R.
Gauza, M.
Li, H.
Hojan-Jezierska, D.
Jaroszyk, F.
Powiązania:
https://bibliotekanauki.pl/articles/1490411.pdf
Data publikacji:
2012-01
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
87.17.-d
87.18.Nq
Opis:
Commercial seed lots of onion (Allium cepa L.) of the cultivars "Octavia" and "Eureka" were soaked for 12 h in water of the temperature 20°C, then they were exposed to low frequency magnetic field (20 mT) for 10, 30, and 60 min. The field was generated using a standard device for magnetic stimulation VIOFOR JPS applied in human medical treatment. Next, the seeds were evaluated for energy and capacity of germination, length of the received germs as well as fresh masses of the obtained seedlings using the routine methods recommended by the International Seed Testing Association. For the seeds of the cultivar "Octavia", the field did not affect the energy of germination, however it did improve in all tested treatments their germination capacity. In the best of them (60 min), the germination capacity increased by 4.6%. For the seeds of the cultivar "Eureka", the tested field increased their energy of germination, which improves evenness of plants emergences in the field and has a significant importance for horticultural practice. When the seeds were exposed to the field for 60 min, their germination energy increased from 40% (control) to 63%. This result was accompanied by no differences in both length of germs and fresh masses of the received from them seedlings.
Źródło:
Acta Physica Polonica A; 2012, 121, 1A; A-049-A-053
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Study of Human Osteoblast-Like MG 63 Cells Proliferation on Resorbable Polymer-Based Nanocomposites Modified with Ceramic and Carbon Nanoparticles
Autorzy:
Wiecheć, A.
Stodolak-Zych, E.
Frączek-Szczypta, A.
Błażewicz, M.
Kwiatek, W.
Powiązania:
https://bibliotekanauki.pl/articles/1490257.pdf
Data publikacji:
2012-02
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
82.35.Np
87.17.Ee
Opis:
Polymer-based nanocomposites containing biocompatible and bioactive nanocomponents seem to be excellent materials that could be used in many biomedical applications. The aim of this study was biological evaluation of resorbable polymer-based nanocomposites (PLA, PCL) and their modifications with ceramic nanoparticles (silica - $SiO_2$, montmorillonite - MMT) or carbon nanotubes. The nanocomposites were seeded with the human osteoblast-like MG 63 cells. After 1, 3 and 7 days of incubation, Trypan blue exclusion test was used to determine the viability and number of cells. The cell population density depending on incubation time and cell population doubling time was calculated. The cell proliferation abilities on the all applied nanocomposites and on control material (polystyrene cell culture plate) were also compared. The number of cells growing on the nanocomposite surfaces increased with the incubation time. The cell viability was not decreased for all applied materials during the entire study (97-100%). The ceramic nanoparticles and carbon nanotubes modified the bone cell growth and proliferation rate. Results of this study confirm that all types of the nanocomposites are appropriate to the growing and proliferation of human osteoblast-like cells.
Źródło:
Acta Physica Polonica A; 2012, 121, 2; 546-550
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Stability of αB-crystallin gene expression in canine mammary gland neoplasms. Should it be considered as circulating tumor cell genetic marker?
Autorzy:
Chmielewska-Krzesińska, M.
Jakimiuk, A.
Wąsowicz, K.
Powiązania:
https://bibliotekanauki.pl/articles/2087495.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
αB-crystallin (CRYAB)
canine mammary gland tumor
circulating tumor cells (CTC)
cytokeratin 17 (CK17)
Źródło:
Polish Journal of Veterinary Sciences; 2019, 3; 523-529
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Targeting the hypoxia pathway in malignant plasma cells by using 17-allylamino-17-demethoxygeldanamycin
Autorzy:
Kocemba-Pilarczyk, Kinga
Ostrowska, Barbara
Trojan, Sonia
Aslan, Ecce
Kusior, Dorota
Lasota, Małgorzata
Lenouvel, Claire
Dulińska-Litewka, Joanna
Powiązania:
https://bibliotekanauki.pl/articles/1038530.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
Multiple myeloma
HIF-1
hypoxia
17-AAG
Opis:
Multiple myeloma (MM) is characterized as a clonal expansion of malignant plasma cells in the bone marrow, which is often associated with pancytopenia and osteolytic bone disease. Interestingly, myeloma-infiltrated bone marrow is considered to be hypoxic, providing selection pressure for a developing tumour. Since HSP90 was shown to participate in stabilization of the subunit of the key transcription factor HIF-1, which controls the hypoxic response, the aim of this study was to investigate the influence of a HSP90 inhibitor 17-allylamino-17-demethoxygeldanamycin (17-AAG), on MM cells cultured under low oxygenation conditions. We confirmed that 17-AAG inhibits hypoxic induction of the HIF-1 target genes in malignant plasma cells and demonstrate the concentration range of severe hypoxia-specific cytotoxicity. Next, we selected the malignant plasma cells under severe hypoxia/re-oxygenation culture conditions in the presence or absence of 17-AAG and subsequently, the cells which survived were further expanded and analyzed. Interestingly, we have noticed significant changes in the survival and the response to anti-MM drugs between the parental cell lines and those selected in cyclic severe hypoxia in the presence and absence of 17-AAG. Importantly, we also observed that the lack of oxygen itself, irrespectively of HIF-1 inhibition, is the main/pivotal factor driving the selection process in the experiments presented here.
Źródło:
Acta Biochimica Polonica; 2018, 65, 1; 101-109
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Inhibition of CYP17 expression by adrenal androgens and transforming growth factor β in adrenocortical cells.
Autorzy:
Biernacka-Łukanty, Justyna
Lehmann, Tomasz
Trzeciak, Wiesław
Powiązania:
https://bibliotekanauki.pl/articles/1041500.pdf
Data publikacji:
2004
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
CYP17
adrenocortical cells
TGF-β
androgens
expression
Opis:
Cytochrome P450c17, encoded by the CYP17 gene, is a component of the 17a-hydroxylase/17,20-lyase enzyme complex essential for production of adrenal glucocorticoids and androgens as well as gonadal androgens. The expression of CYP17 in adrenocortical cells is stimulated by corticotropin (ACTH) via the signal transduction pathway involving cAMP and protein kinase A (PKA). Thus, in addition to glucocorticoids, ACTH stimulates formation of adrenal androgens, which are known to induce transforming growth factor β (TGF-β) secretion. TGF-β in turn inhibits steroid hormone output by attenuating both basal and ACTH-dependent expression of CYP17. The present study revealed that treatment of bovine and human H295R adrenocortical cells with androgens resulted in a decrease in the basal level of CYP17 transcript and cortisol secretion, without affecting forskolin-stimulated levels. We also demonstrated that in H295R cells TGF-β inhibited both basal and forskolin-stimulated accumulation of CYP17 mRNA. Determination of promoter activity, directing luciferase reporter gene expression in H295R cells transfected with deletion fragments of bovine CYP17 promoter, indicated that the -483 to -433 bp fragment of the promoter was necessary for the inhibitory action of TGF-β on CYP17 expression. It is concluded that in bovine and human adrenocortical cells, androgens inhibit basal CYP17 expression probably at the transcriptional level and independently of the effect of TGF-β.
Źródło:
Acta Biochimica Polonica; 2004, 51, 4; 907-917
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Przemysław Adam Wiśniewski, La discendenza di Aronne. Studio diacronico di Ex 24*; Lv 10*; Nb 17*; Nb 27* (Supplementi alla Rivista Biblica 62; Bologna: EDB 2017)
Autorzy:
Rzepka, Barbara
Powiązania:
https://bibliotekanauki.pl/articles/1044010.pdf
Data publikacji:
2020-07-03
Wydawca:
Katolicki Uniwersytet Lubelski Jana Pawła II
Tematy:
Wj 24
Kpł 10
Lb 17
Lb 27
Aaron
kapłaństwo
Exodus 24
Leviticus 10
Numbers 17
Numbers 27
priesthood
Opis:
The book review of Przemysław Adam Wiśniewski, La discendenza di Aronne. Studio diacronico di Ex 24*; Lv 10*; Nb 17*; Nb 27* (Supplementi alla Rivista Biblica 62; Bologna: EDB 2017). Pp. 282. € 36,00. ISBN 978-88-10-254-5.
Źródło:
Verbum Vitae; 2020, 37, 2; 429-434
1644-8561
2451-280X
Pojawia się w:
Verbum Vitae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Chinese Strategy Towards Europe: The Belt and Road Initiative and 17 + 1 Strategy – What Does It Mean for the EU and Central and Eastern Europe?
Autorzy:
Akdemir, Erhan
Powiązania:
https://bibliotekanauki.pl/articles/558095.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Warszawski. Centrum Europejskie
Tematy:
China;
International Relations;
European Union;
Strategy 17+1;
Opis:
Several projects like the Silk Road have been developed by different countries in the post-1991 period, but there is only one that had a tremendous global impact: the “One Belt One Road” (Belt and Road) Initiative developed by China. This project was first announced by the Chinese President Xi Jinping during his visit to Central Asia in 2013, and has subsequently had a tremendous global, regional and national effect. The Belt and Road Initiative not only covers almost the entire Asian continent, but also a large geographical area that extends from East Africa to Europe. Through this project China aims to promote common development and welfare sharing among all countries along the Belt and Road routes, to establish mutual political trust between China and these countries, to more effectively connect transportation networks among regions and cities along the routes, and to establish cultural contact between societies. Accordingly, China wants to put its development process on a planned and solid basis by increasing its global impact in the economic, political, and cultural fields.
Źródło:
Studia Europejskie - Studies in European Affairs; 2020, 24, 2; 121-145
1428-149X
2719-3780
Pojawia się w:
Studia Europejskie - Studies in European Affairs
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Officers – Protestants in the Polish Crown army in the second half of the 17th century
Autorzy:
NAGIELSKI, Mirosław
Powiązania:
https://bibliotekanauki.pl/articles/517633.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Przyrodniczo-Humanistyczny w Siedlcach
Tematy:
History
Military history
Modern Age
17th Century
Opis:
Research on the confession of officers serving in the Polish army in the 17th century is very limited. The different confession than a Roman Catholic, serving in the army as officers as soldiers did not facilitate their promotion in the army.
Źródło:
Historia i Świat; 2018, 7; 199-208
2299-2464
Pojawia się w:
Historia i Świat
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 111

Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies