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Tytuł:
Badanie połączenia akumulatora ołowiowego z superkondensatorem jako układu hybrydowego do rozruchu silnika spalinowego
Study on combination of lead acid bettery with supercapacitors into a hybrid system to start combustion engine
Autorzy:
Jankowska, E.
Kopciuch, K.
Błażejczak, M.
Majchrzycki, W.
Piórkowski, P.
Powiązania:
https://bibliotekanauki.pl/articles/1199474.pdf
Data publikacji:
2017
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Napędów i Maszyn Elektrycznych Komel
Tematy:
akumulator ołowiowy
superkondensatory
hybrydowe źródło energii
lead acid battery
supercapacitors
hybrid energy system
Opis:
This paper presents a study on combination of a starting lead-acid battery and supercapacitors to form a hybrid energy source. The energy storage capacity and maximum power of each unit is sufficient to start a car combustion engine under standard conditions. However, under severe operating conditions e.g. at low temperatures, at low degree of charge resulting from frequent starts (start-stop systems) or from a large amount of on-board devices to be powered while the engine is off or after long breaks in operation, the engine start-up using only a lead-acid battery may be difficult or impossible. Therefore, it was reasonable to examine the start-up of a combustion engine using a hybrid system that consists of a lead acid battery and a supercapacitor. The study showed the differences in systems behavior depending on a used supercapacitor. It has been found that supercapacitors combined with a lead acid battery as a hybrid system lead to mutual complementing of operating parameters in severe conditions, e.g. low temperature or an undercharged battery. The properties of the supercapacitors broadly complement those of lead-acid battery. Analysis of characteristics of lead-acid battery and supercapacitors working separately as hybridized system confirmed the positive interaction of both types of energy sources.
W artykule zaprezentowano badania zestawu połączonych wspólnie rozruchowego akumulatora ołowiowego z superkondensatorami jako hybrydowego źródła energii. Magazynowanie energii i maksymalna moc każdej z jednostek jest wystarczające do uruchomienia silnika spalinowego w samochodzie osobowym w warunkach standardowych. Jednak w trudnych warunkach eksploatacyjnych akumulatora ołowiowego np. w niskich temperaturach, przy niskim stopniu jego naładowania wynikającego z częstych rozruchów (systemy start-stop), zasilania dużej ilości urządzeń pokładowych przy wyłączonym silniku lub długich przerw w eksploatacji rozruch może być utrudniony lub niemożliwy. Z tego względu rozpatrzono rozruch silnika spalinowego z wykorzystaniem zestawu hybrydowego tj. połączenie akumulatora i superkondensatora. Przeprowadzone badania wykazały różnice w zachowaniu układów w zależności od zastosowanego superkondensatora. Stwierdzono, że zastosowanie superkondensatorów wraz z akumulatorem ołowiowym w zestawie hybrydowym prowadzi do wzajemnego uzupełnienia parametrów eksploatacyjnych pracy obu komponentów w niekorzystnych warunkach np. niskiej temperaturze lub dla niedoładowanego akumulatora. Właściwości superkondensatorów w znacznej mierze uzupełniają się z właściwościami akumulatorów ołowiowych. Analiza charakterystyk akumulatora ołowiowego i superkondensatorów pracujących osobno i w zestawie hybrydowym potwierdziła pozytywne współdziałanie obu typów źródeł energii.
Źródło:
Maszyny Elektryczne: zeszyty problemowe; 2017, 2, 114; 107-113
0239-3646
2084-5618
Pojawia się w:
Maszyny Elektryczne: zeszyty problemowe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Basic for a valuation of the Polish Exclusive Economic Zone of the Baltic Sea: Rationale and quest for tools
Autorzy:
Weslawski, J.M.
Andrulewicz, E.
Kotwicki, L.
Kuzebski, E.
Lewandowski, A.
Linkowski, T.
Massel, S.R.
Musielak, S.
Olanczuk-Neyman, K.
Pempkowiak, J.
Piekarek-Jankowska, H.
Radziejewska, T.
Rozynski, G.
Sagan, I.
Skora, K.E.
Szefler, K.
Urbanski, J.
Witek, Z.
Wolowicz, M.
Zachowicz, J.
Zarzycki, T.
Powiązania:
https://bibliotekanauki.pl/articles/47570.pdf
Data publikacji:
2006
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
marine environment
erosion
mineral resource
biofiltration
Polish Exclusive Economic Zone
economic valuation
Baltic Sea
ecosystem
marine ecosystem
coastal sand
fish resource
Opis:
This paper summarises current knowledge of goods and services in the Polish Exclusive Economic Zone of the Baltic Sea ecosystem. It reviews specific properties of the Baltic that could be used for economic valuation. Goods and services range from the familiar resources of fish and minerals, which were valued with the Productivity Method, to less obvious services provided by the ecosystem such as biofiltration in coastal sands, valued with either the Replacement Cost or Damage Cost Avoided methods. Disservices to the marine ecosystem are also considered, e.g. erosion and coastal flooding, including the costs of planned mitigating measures. This paper emphasises the importance of using valuation methods to help make better-educated decisions for the sustainability of the Baltic Sea.
Źródło:
Oceanologia; 2006, 48, 1
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparison of bacterial production in the water column between two Arctic fjords, Hornsund and Kongsfjorden (West Spitsbergen)
Autorzy:
Ameryk, A.
Jankowska, K.M.
Kalinowska, A.
Weslawski, J.M.
Powiązania:
https://bibliotekanauki.pl/articles/47914.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
bacterial production
environmental factor
water column
chlorophyll a
water temperature
bacterial biomass
dissolved organic carbon
dissolved organic matter
Arctic fjord
Spitsbergen
Kongsfjorden
Hornsund
Opis:
Bacterial production and the accompanying environmental factors were measured in the water columns of two Arctic fjords during the cruise in July and August 2013. Water samples were collected at six stations located in the central part of Hornsund and Kongsfjorden. In Hornsund, where average water temperatures were 1.25-fold lower than in Kongsfjorden, the bacterial production was twice as high (0.116 ± 0.102 vs 0.05 ± 0.03 mg C m−3 h−1). Statistical analysis indicated that chlorophyll a concentration itself was not a significant factor that affected bacterial production, in contrast to its decomposition product, pheophytin, originating from senescent algal cells or herbivorous activity of zooplankton. Single and multiple regression analysis revealed that water temperature, dissolved organic carbon (DOC), and pheophytin concentration were the main factors affecting bacterial production in both fjords.
Źródło:
Oceanologia; 2017, 59, 4
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effects of climate change on microbial community structure and function in the Antarctic glacier lagoon
Autorzy:
Swiatecki, A.
Gorniak, D.
Jankowska, K.
Zdanowski, M.K.
Borsuk, P.
Zmuda-Baranowska, M.J.
Grzesiak, J.
Powiązania:
https://bibliotekanauki.pl/articles/11992.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
climate change
microbial community
community structure
community function
Antarctic
glacier lagoon
glacier recession
Opis:
One of the dramatic effects of global warming is the retreat of glaciers. This phenomenon has intensified in the last two decades. Postglacial areas are quickly colonised by various groups of organisms. Auto- and heterotrophic microorganisms play an especially vital role in these processes. They thrive in shallow glacial lagoons which often form in front of retreating glaciers. These reservoirs are characterised by high dynamics of physicochemical parameters, including: salinity, temperature and concentrations of organic compounds and nutrients. The conducted microbiological studies have revealed rich structural and functional diversity of bacteria occurring in the ecosystem of Ecology Lagoon situated on King George Island. Bacteria found on the surface of algae and stones in the shore zone of the lagoon showed particularly intense metabolic activity. A molecular analysis has indicated that unique taxonomic groups of bacteria occur in the ecosystem of Ecology Lagoon.
Źródło:
Papers on Global Change; 2010, 17
2300-8121
1730-802X
Pojawia się w:
Papers on Global Change
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Epidemiological and morphological analysis of feline injection site sarcomas
Autorzy:
Kliczkowska, K.
Jankowska, U.
Jagielski, D.
Czopowicz, M.
Sapierzynski, R.
Powiązania:
https://bibliotekanauki.pl/articles/31589.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:
Feline injection site sarcomas (FISS) are malignant neoplasms of mesenchymal origin which arise in sites of injections in cats. The prevalence is estimated between 1 in 1000 and 1 in 10 000 vaccinations in the United Kingdom. The aim of this study was to estimate the incidence of FISS in Poland and to analyse clinical aspects and histological and cytological features of injection site sarcomas. In our study the prevalence of FISS was 0.16% (16 FISS on 10.000 of cats) in feline patients in one of a veterinary surgery which conducts the general practice and 85 on 10.000 cats in a practice focused on veterinary oncology. The most typical microscopic features of FISS found in the present analysis were: the presence of perilesional scarring and inflammation, aggregates of lymphocytes at the tumour periphery, moderate but usually marked cellular pleomorphism and intralesional necrosis. The most typical cytologic features of FISS found in present study were: the presence of neutrophils, marked cellular pleomorphism, the presence of lymphocytes and macrophages, the presence of extremely large nuclei in the neoplastic cells, and high sample cellularity.
Źródło:
Polish Journal of Veterinary Sciences; 2015, 18, 2
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Identification of Cryptosporidium felis and another opportunistic infections among patients with primary and acquired immunodeficiency
Autorzy:
Bednarska, M.
Bajer, A.
Jankowska, I.
Piwczynska, K.
Wolska-Kusnierz, B.
Wielopolska, M.
Pawelas, A.
Welc-Faleciak, R.
Powiązania:
https://bibliotekanauki.pl/articles/6120.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Parazytologiczne
Tematy:
identification
Cryptosporidium felis
opportunistic infection
patient
primary immunodeficiency
AIDS
Źródło:
Annals of Parasitology; 2016, 62, Suppl.
0043-5163
Pojawia się w:
Annals of Parasitology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Kształtowanie kultury organizacyjnej wspierającej innowacyjność przedsiębiorstw
Development of organizational culture supporting enterprise innovation
Autorzy:
Molasy, M.
Walecka-Jankowska, K.
Zgrzywa-Ziemak, A.
Powiązania:
https://bibliotekanauki.pl/articles/203305.pdf
Data publikacji:
2018
Wydawca:
Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:
kultura organizacyjna
innowacyjność
metoda
organizational culture
innovation
method
Opis:
W artykule opisano aktualny obszar badań dotyczący kształtowania kultury. Wielu badaczy podkreśla, że kultura organizacyjna odgrywa bardzo ważną rolę we wspieraniu procesów innowacyjnych. Celem artykułu jest pokazanie metody modelowania zachowań społecznych w organizacjach przez odpowiednie kształtowanie proinnowacyjnej kultury organizacyjnej. Bazując zarówno na rozważaniach teoretycznych, jak i badaniach empirycznych omówiono, charakterystykę kultury organizacyjnej, która sprzyja i hamuje innowacyjność. Następnie scharakteryzowano opracowany szkic metody kształtowania kultury organizacyjnej sprzyjającej innowacyjności.
This article describes the current area of research regarding the shaping of culture. Many researchers emphasize that organizational culture plays a very important role in supporting innovation. The aim of the article is to present a method of modeling social behavior in organizations by appropriately shaping a pro-innovative organizational culture. Based on both theoretical considerations and empirical studies, the characteristics of organizational culture that foster and inhibit innovation are discussed. An outline of the method for shaping an organizational culture conducive to innovation is elaborated.
Źródło:
Zeszyty Naukowe Politechniki Poznańskiej. Organizacja i Zarządzanie; 2018, 77; 207-217
0239-9415
Pojawia się w:
Zeszyty Naukowe Politechniki Poznańskiej. Organizacja i Zarządzanie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Nutritional status, morphological and biochemical blood parameters in HIV-positive adults from northern Poland
Autorzy:
Lebiedzinska, A.
Majewski, M.
Waszkiewicz, M.
Maksymowicz-Jaroszuk, J.
Grzeszczuk, A.
Bierzynska, N.
Lemanska, M.
Jankowska, M.
Smiatacz, T.
Szefer, P.
Karczewski, J.K.
Powiązania:
https://bibliotekanauki.pl/articles/14855.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Źródło:
Journal of Elementology; 2018, 23, 3
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ocena statusu socjodemograficznego i stanu odżywienia chorych z rakiem płuca
Assessment of sociodemographic and nutritional status of lung cancer patients
Autorzy:
Zablocka, K.
Krawczyszyn, M.
Pieczynska, J.
Prescha, A.
Ilow, R.
Porebska, I.
Golecki, M.
Kosacka, M.
Jankowska, R.
Grajeta, H.
Biernat, J.
Powiązania:
https://bibliotekanauki.pl/articles/875872.pdf
Data publikacji:
2011
Wydawca:
Narodowy Instytut Zdrowia Publicznego. Państwowy Zakład Higieny
Tematy:
ludzie chorzy
rak pluc
choroby czlowieka
zywienie czlowieka
stan odzywienia
palenie tytoniu
warunki socjalno-bytowe
Opis:
Niski status socjodemograficzny wynikający m.in. z gorszych warunków socjalno-bytowych, a także z palenia tytoniu może zwiększać ryzyko wystąpienia raka płuca. Stan odżywienia, oceniany podczas diagnozowania choroby, jest przydatnym czynnikiem prognozującym odpowiedź chorego na leczenie, a ponadto znacząco wpływa na jakość, jak również na długość życia po zakończeniu terapii onkologicznej. Celem badań była ocena statusu socjodemograficznego oraz stanu odżywienia pacjentów Dolnośląskiego Centrum Chorób Płuc, u których zdiagnozowano raka płuca. Badaniami objęto grupę 81 pacjentów i grupę kontrolną liczącą 125 osób. Wśród wszystkich badanych przeprowadzono wywiad dotyczący statusu socjodemograficznego, a także dokonano oceny stanu odżywienia za pomocą pomiarów antropometrycznych i ankiety Mini Nutritional Assessment (MNA). U chorych, w odniesieniu do zdrowych, stwierdzono niższy poziom wykształcenia, częstsze uzależnienie od tytoniu, a także niższą aktywność zawodową. Stan odżywienia chorych na raka płuca był istotnie gorszy niż grupy kontrolnej, co zostało wykazane głównie za pomocą ankiety MNA i pomiaru obwodu ramienia. Częste występowanie ryzyka niedożywienia bądź niedożywienie u badanych chorych może zwiększyć prawdopodobieństwo wystąpienia powikłań w trakcie leczenia.
Low sociodemographic status positively correlates with the risk of lung cancer. Nutritional status assessed during diagnosis of cancer may be a useful predictive factor for response to therapy and influences the quality of life and life expectancy after oncological therapy. The aim of this study was to assess the sociodemographic and nutritional status of patients Lower Silesian Centre of Lung Diseases, diagnosed with lung cancer. 81 cases and 125 subjects formed the control group were included in this study. The questionnaire about sociodemographic status was performed among all respondents as well as MNA questionnaire and anthropometric measurements for evaluating nutritional status. Lower level of education, lower employment status and more frequent tobacco addiction was found in patient group then in control individuals. Nutritional status of patients was worse than the control group, which has been demonstrated mainly through a MNA questionnaire and arm circumference measurements. The risk of malnutrition or diagnosed malnutrition found in most patients assessed by MNA test may increase the likelihood of complications during treatment.
Źródło:
Roczniki Państwowego Zakładu Higieny; 2011, 62, 4
0035-7715
Pojawia się w:
Roczniki Państwowego Zakładu Higieny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Peptydy jako potencjalne ligandy wiążące jony metali przejściowych
Peptides as potential ligands binding transition metal ions
Autorzy:
Krupa, K.
Lesiów, M. K.
Kowalik-Jankowska, T.
Powiązania:
https://bibliotekanauki.pl/articles/171519.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Chemiczne
Tematy:
peptydy
reszta histydylowa
kompleksy metali
model koordynacyjny
peptides
histidine residue
metal complexes
coordination mode
Opis:
Peptides are crucial ligands for transition metal ions and form complexes with them, that can have important biological activity. Many factors impact on the creation of complexes such as: protection of amine group from N-terminal or carboxylate group from C-terminals of the protein, the presence of noncoordinating and coordinating side chains in the peptide sequence, the number of histidyl residues and their location in the peptide chain. In complexes the metal ion can be bound bound by various donor atoms from amino acids residues (e.g. nitrogen, oxygen or sulphur). In general, the protection of N- or C-terminal groups influences the less stable formation of complexes. Stable complexes are created, if the free amine group from the N-terminal is involved in the coordination process. Peptides with noncoordinating side chains include alanine or glycine. Glycine complexes are more stable than these with alanine. Histidyl residue is the most effective amino acid residue in binding metal ions. The amine group of the lysyl residue, thiol from cysteine or carboxylate from aspartyl or glutamyl residues are also functional groups that coordinate metal ions. The coordination process is initiated by a group that anchors metal ion. A free amine group from N-terminus or imidazole nitrogen are the best examples of anchor groups. The metal ions can also be bound through amide nitrogens, after their forced deprotonation by the anchor group and formation of chelate rings. Peptides containing two or more histidyl residues exhibit high structural diversity in the complexes formation. In addition, these peptides can also form macrochelates and polynuclear complexes. The location of amino acid residues in the peptide chain (especially histydyl residue) also results in the thermodynamically stable formation of complexes.
Źródło:
Wiadomości Chemiczne; 2018, 72, 7-8; 597-608
0043-5104
2300-0295
Pojawia się w:
Wiadomości Chemiczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Różnorodność glebowego banku nasion i runa wtórnego lasu dębowego w Kozubowskim Parku Krajobrazowym
Soil seed bank and herb layer diversity within secondary oak forest in the Kozubowski Landscape Park
Autorzy:
Halatkiewicz, T.
Jankowska-Błaszczuk, M.
Swiercz, A.
Adamczyk, K.
Powiązania:
https://bibliotekanauki.pl/articles/985706.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
drzewostany debowe
wtorny drzewostan debowy
runo lesne
banki nasion
glebowy bank nasion
Kozubowski Park Krajobrazowy
secondary oak forest
soil seed bank
herb layer structure
nida basin
Opis:
The research concerned the evaluation of the soil seed bank and herb layer diversity in the 60−year old secondary oak forest growing in the Kozubowski Landscape Park (Nida Basin, southern Poland). The aim of the studies was to determine the diversity, similarity and species structure of herb layer and soil seed bank within plots situated at different distances from the forest edge as well as to discuss the obtained data with the results of analogous research which were conducted in the natural oak forest in Białowieża (north−eastern Poland). 12 plots 20×20 m were situated in three zones from edge to the centre of the forest (P, S and L; fig. 1). A total of 134 species of vascular plants were recorded in the analysed herb layer (4800 m2). It was found that in the plots closest to the forest edge, both the Shannon’s diversity index and the average density of the herb layer species were significantly higher than on these located deeper in forest (fig. 2, 3). The soil seed bank contained a total of 2820 seeds belonging to 45 species. The density of the seed bank ranged from 1406/m2 (P) to 1061/m2 and 1057/m2 (S and L, respectively). The seed bank species richness showed a constant decrease from zone P to L (fig. 4). The Sörensen species similarity coefficient between the herb layer and the seed bank for the entire forest was 0.43. Although nearly 90% of the seeds of the whole bank belonged to the species present in the herb layer, the species structure of the above ground vegetation was clearly different from that recorded in the bank. It was found that over 66% of all seeds in the bank belonged to Poa nemoralis. A comparative analysis of the studied oak forest and natural oak forest of Białowieża showed: a similar number of forest species in herb layer per 100 m2, similarly high proportion of ancient forest species in the herb layer, much lower species richness of the seed bank as well as its density in the secondary forest. Our results also point to several times lower values of H’ Shannon−Wiener’s biodiversity index, both in the herb layer and the seed bank in comparison to the undisturbed Białowieża oak forest.
Źródło:
Sylwan; 2019, 163, 05; 415-424
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Secretory structures and essential oil composition of selected industrial species of Lamiaceae
Autorzy:
Kowalski, R.
Kowalska, G.
Jankowska, M.
Nawrocka, A.
Kałwa, K.
Pankiewicz, U.
Włodarczyk-Stasiak, M.
Powiązania:
https://bibliotekanauki.pl/articles/12301246.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Tematy:
plant cultivation
Lamiaceae
lemon balm
marjoram
Origanum majorana
Melissa officinalis
peppermint
Mentha piperita
rosemary
Rosmarinus officinalis
sage
Salvia officinalis
common thyme
Thymus vulgaris
herbal plant
medicinal plant
industrial plant
micromorphographic analysis
secretory structure
essential oil
glandular trichome
medicinal property
Opis:
The objective of the study was to perform micromorphological analyses of the secretory structures of leaves and stems of oil-bearing industrial plants from the Lamiaceae family such as lemon balm (Melissa officinalis L.), peppermint (Mentha × piperita L.), sage (Salvia officinalis L.), marjoram (Origanum majorana L., syn. Origanum dubium Boiss.), rosemary (Rosmarinus officinalis L.) and common thyme (Thymus vulgaris L.) using light microscope and scanning electron microscope. In addition, an estimation of the content of volatile substances in the plant species under study was performed using GC-MS, as well as the qualitative and quantitative analysis of essential oil, that is an important component in terms of the estimation of raw material applicability for use in the industry. In the epidermal cells of studied plants, 2 types of Lamiaceae-type glandular trichomes were identified: short- and long-stalked capitate glandular trichomes with single- and bicellular secretory capitulum, and peltate glandular trichomes with eight- and over a dozen-cell secretory capitulum. Capitate trichomes were densely distributed on the surface of the epidermis, while peltate trichomes were sparse, though regular, and were situated in depressions. Glandular trichomes were found more frequently on leaves than on stems. The cuticle of the abaxial of leaf was characterized in most cases by the occurrence of larger average diameter peltate trichomes compared to the cuticle of the adaxial side of leaf. Peppermint produced the largest structures accumulating essential oil on the leaves (average diameter of peltate trichomes – 78.48 µm on the adaxial side of leaf, up to 96.43 µm), while on the stem, the highest average diameter of the peltate trichomes was observed in sage (an average of 75.53 µm, up to 85.99 µm). The lemon balm was characterized by the presence of capitate and peltate trichomes with the smallest diameter (an average of 44.26 µm). Lemon balm was characterized by the greatest density of glandular trichomes compared to other plant species. Among the plants studied, the highest content of oil was noted in the case of thyme and peppermint (2.22% and 2.20% v/w, respectively), and the lowest in green parts of lemon balm (0.17% v/w). The isolated essential oils contained predominantly components from the groups of monoterpenes and sesquiterpenes, and it is the presence of those substances that determines the possibility of utilizing the plants studied for a variety of purposes.
Źródło:
Acta Scientiarum Polonorum. Hortorum Cultus; 2019, 18, 2; 53-69
1644-0692
Pojawia się w:
Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Selection and electrophoretic characterization of Salmonella enterica subsp. enterica biocide variants resistant to antibiotics
Autorzy:
Futoma-Koloch, B.
Ksiazczyk, M.
Korzekwa, K.
Migdal, I.
Pawlak, A.
Jankowska, M.
Kedziora, A.
Dorotkiewicz-Jach, A.
Bugla-Ploskonska, C.
Powiązania:
https://bibliotekanauki.pl/articles/32520.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:
The proposed research outlines a serious common concern of Salmonella resistance to antimicrobials following prolonged exposure to the disinfectants (biocides). These phenotypes of bacteria could potentially result in hard to treat infections. Typical for avian sources, biocide sensitive S. enterica subsp. enterica serovars: Typhimurium, Enteritidis, Virchow and Zanzibar and their isogenic biocide-tolerant variants were studied in order to investigate bacteriostatic effect of two commercially available biocide formulations: potassium peroxymonosulfate (P) and dodecylamine based structure (triamine, D). We found that cultivating of the bacteria in the medium supplemented with a blend containing P did not influence their antibiotic susceptibility pattern. In contrast, tolerance of bacteria to D compound resulted in resistance to co-trimoxazole, cefotaxime and ciprofloxacin of which two cefotaxime and ciprofloxacin are used commonly for the treatment of invasive Salmonella infections in humans. The dependency between OMP patterns and the level of Salmonella survival in media containing the biocides was observed merely in serovar Typhimurium. In conclusion, these results suggest that Salmonella strains challenged by prolonged treatment with the disinfectants become resistant to antibiotics, however it depends on Salmonella serovar and the chemical used. This paper also highlights the loop-mediated isothermal amplification (LAMP) as a technique that offers great benefits to microbiological detecting of Salmonella species in the samples.
Źródło:
Polish Journal of Veterinary Sciences; 2015, 18, 4
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The first case of Enterocytozoon bieneusi infection in Poland
Autorzy:
Bednarska, M.
Bajer, A.
Welc-Faleciak, R.
Czubkowski, P.
Teisseyre, M.
Graczyk, T.K.
Jankowska, I.
Powiązania:
https://bibliotekanauki.pl/articles/49866.pdf
Data publikacji:
2013
Wydawca:
Instytut Medycyny Wsi
Tematy:
Enterocytozoon bieneusi
infection
Polska
microsporidia
parasite
human infection
intracellular parasite
Opis:
Microsporidia are intracellular parasites that cause opportunistic infections in humans of various immunological status. Only a few case reports exist on microsporidial infection in solid organ transplant recipients worldwide. The presented study demonstrates the first case in Poland of Enterocytozoon bieneusi infection in a liver transplant patient. Parasites were diagnosed in stool samples using both modified trichrome staining and PCR.
Źródło:
Annals of Agricultural and Environmental Medicine; 2013, 20, 2
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The microstructure and thermal stability of the two-component melt-spun Ni₅₅Fe₂₀Cu₅P₁₀B₁₀ TCMS amorphous/amorphous composite
Autorzy:
Ziewiec, K.
Wojciechowska, M.
Prusik, K.
Mucha, D.
Jankowska-Sumara, I.
Powiązania:
https://bibliotekanauki.pl/articles/1075849.pdf
Data publikacji:
2016-10
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
61.05.cp
61.05.J-
81.05.Kf
81.05.Pj
72.15.Cz
68.60.Dv
Opis:
The aim of this study is to present the special features and properties of the two alloys of similar average chemical composition Ni₅₅Fe₂₀Cu₅P₁₀B₁₀, processed through two different routes. The first alloy was melt-spun after the ejection of homogeneous liquid using a traditional single chamber crucible, and the second alloy was ejected from a double chamber crucible as two separate liquids: i.e., Ni₄₀Fe₄₀B₂₀ and Ni₇₀Cu₁₀P₂₀, mixing only at the orifice area. The studies of the microstructure of the composite alloy were performed through the use of transmission electron microscopy and scanning electron microscopy. The Ni₅₅Fe₂₀Cu₅P₁₀B₁₀ two-chamber melt-spun (TCMS) alloy, as well as the homogeneous Ni₅₅Fe₂₀Cu₅P₁₀B₁₀, Ni₄₀Fe₄₀B₂₀, and Ni₇₀Cu₁₀P₂₀ alloys, were heated to elevated temperatures and their characteristics studied by means of differential scanning calorimetry. The temperature resistivity change method was applied to the examination of the Ni₅₅Fe₂₀Cu₅P₁₀B₁₀ TCMS alloy. The phase composition after heat treatment was investigated using X-ray diffraction. The results of the microstructure examination show that the TCMS alloy is an amorphous/amorphous composite, and is notable for its Ni-Fe-B and Ni-Cu-P stripes resulting from its differentiated chemical composition. Another unique feature of the TCMS alloy is that it retains its wood-like morphology even after high-temperature heat treatment. The crystallisation of the TCMS alloy starts from the Ni-Cu-P constituent and ends with the Ni-Fe-B areas of the sample. The results are discussed on the basis of previous work completed on amorphous matrix composites.
Źródło:
Acta Physica Polonica A; 2016, 130, 4; 927-930
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł

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