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Wyświetlanie 1-8 z 8
Tytuł:
Circulating immune complexes and markers of systemic inflammation in RAO-affected horses
Autorzy:
Niedzwiedz, A.
Jaworski, Z.
Kubiak, K.
Powiązania:
https://bibliotekanauki.pl/articles/31885.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:
The aim of this study was to investigate the levels of circulating immune complexes (CICs) and concentration of haptoglobin, fibrinogen and C-reactive protein in the serum of horses with recurrent airway obstruction and healthy controls. The study was conducted on a group of 14 adult Polish Konik horses, kept in uniform environmental and living conditions. Horses were divided into two groups: 7 horses were not affected by any respiratory problem (control group) and 7 horses had a history of recurrent airway obstruction (RAO) (study group). A clinical and laboratory evaluation, endoscopic examination and bronchoalveolar lavage (BAL) were performed in all horses. Levels of circulating immune complexes were significantly (p=0.0057) increased in heaves-affected horses compared to healthy controls (median [25th - 75th percentiles]) (3.96 [3.96 - 4.43] vs. 7.46 [5.13 - 11.9]). No significant difference was observed in the levels of the examined acute phase proteins between the groups. Moreover, all results were within the reference range established for horses. The results of this study indicate that heaves in horses is associated with the formation and high level of CICs. Haptoglobin, fibrinogen and C-reactive protein failed as markers of early stage systemic inflammation in the course of RAO.
Źródło:
Polish Journal of Veterinary Sciences; 2014, 17, 4
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Entropy generation in a condenser and related correlations
Autorzy:
Laskowski, R.
Jaworski, M.
Smyk, A.
Powiązania:
https://bibliotekanauki.pl/articles/240683.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
steam condenser
entropy generation
kondensator pary
generowanie entropii
Opis:
The paper presents an analysis of relations describing entropy generation in a condenser of a steam unit. Connections between entropy generation, condenser ratio, and heat exchanger effectiveness, as well as relations implied by them are shown. Theoretical considerations allowed to determine limits of individual parameters which describe the condenser operation. Various relations for average temperature of the cold fluid were compared. All the proposed relations were verified against data obtained using a simulator and actual measurement data from a 200 MW unit condenser. Based on data from a simulator it was examined how the sum of entropy rates, steam condenser effectiveness, terminal temperature difference and condenser ratio vary with the change in the inlet cooling water temperature, mass flow rate of steam and the cooling water mass flow rate.
Źródło:
Archives of Thermodynamics; 2015, 36, 2; 27-48
1231-0956
2083-6023
Pojawia się w:
Archives of Thermodynamics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Possibility of using adsorption refrigeration unit in district heating network
Autorzy:
Grzebielec, A.
Rusowicz, A.
Jaworski, M.
Laskowski, R.
Powiązania:
https://bibliotekanauki.pl/articles/240811.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
refrigeration
adsorption refrigeration
air conditioning
district heating network
chłodzenie
absorpcja
klimatyzacja
sieć ciepłownicza
Opis:
Adsorption refrigeration systems are able to work with heat sources of temperature starting with 50°C. The aim of the article is to determine whether in terms of technical and economic issues adsorption refrigeration equipment can work as elements that produce cold using hot water from the district heating network. For this purpose, examined was the work of the adsorption air conditioning equipment cooperating with drycooler, and the opportunities offered by the district heating network in Warsaw during the summer. It turns out that the efficiency of the adsorption device from the economic perspective is not sufficient for production of cold even during the transitional period. The main problem is not the low temperature of the water supply, but the large difference between the coefficients of performance, COPs, of adsorption device and a traditional compressor air conditioning unit. When outside air temperature is 25°C, the COP of the compressor type reaches a value of 4.49, whereas that of the adsorption device in the same conditions is 0.14. The ratio of the COPs is 32. At the same time ratio between the price of 1 kWh of electric power and 1 kWh of heat is only 2.85. Adsorption refrigeration equipment to be able to compete with compressor devices, should feature COPads efficiency to be greater than 1.52. At such a low driving temperature and even changing the drycooler into the evaporative cooler it is not currently possible to achieve.
Źródło:
Archives of Thermodynamics; 2015, 36, 3; 15-24
1231-0956
2083-6023
Pojawia się w:
Archives of Thermodynamics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Molecular cloning, characterization and expression of a calcium dependent protein kinase (CDPK) involved in the stress signalling in Hippeastrum x hybr.
Autorzy:
Szewczuk, P.
Swiezawska, B.
Pawelek, A.
Jaworski, K.
Szmidt-Jaworska, A.
Powiązania:
https://bibliotekanauki.pl/articles/80573.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
molecular cloning
expression
calcium-dependent protein kinase
flowering plant
Hippeastrum x hybridum
biotic stress
abiotic stress
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 3
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Molecular cloning, characterization and expression of a guanylyl cyclase (HpGC1) involved in the stress signalling in Hippeastrum x hybr.
Autorzy:
Swiezawska, B.
Szewczuk, P.
Pawelek, A.
Jaworski, K.
Szmid-Jaworska, A.
Powiązania:
https://bibliotekanauki.pl/articles/81222.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
molecular cloning
expression
characteristics
guanylyl cyclase
signal transduction
light signal transduction
biotic stress
abiotic stress
stress tolerance
Hippeastrum x hybridum
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 3
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Morphology and elemental analysis of free range and stabled Polish Konik horses hair using Energy-dispersive X-ray spectroscopy (EDS)
Autorzy:
Kubiak, K.
Niedźwiedź, A.
Siwińska, N.
Jaworski, Z.
Żak, A.
Słowikowska, M.
Powiązania:
https://bibliotekanauki.pl/articles/2087781.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
diet
elemental composition
hair
horses
Polish Konik
shortages
Źródło:
Polish Journal of Veterinary Sciences; 2018, 21, 1; 65-72
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of serum cytokine levels in recurrent airway obstruction
Autorzy:
Niedzwiedz, A.
Borowicz, H.
Kubiak, K.
Nicpon, J.
Skrzypczak, P.
Jaworski, Z.
Cegielski, M.
Powiązania:
https://bibliotekanauki.pl/articles/31728.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:
Recurrent airway obstruction (RAO) represents a serious health problem and is traditionally classified as an allergic disease, where contact with an antigen can induce clinical airway inflammation, bronchial hyper-responsiveness and reversible airway obstruction. Previous studies have demonstrated the presence of the Th2 response in the lungs of human patients with asthma and horses with heaves. These cells are involved in the production of cytokines which regulate the synthesis of immunoglobulins. 40 horses were evaluated: 30 horses with RAO and 10 healthy animals. The expression levels of interferon-alpha 1 (IFN-α1), interferon-gamma (IFN-γ), interleukin-1β, (IL-1β), IL-2, IL-4, IL-13 and tumor necrosis factor alpha (TNF-α) were measured in the serum obtained from control and RAO-susceptible horses during crisis. In all the patients, serum cytokine levels were detected. Serum median IL-13 and IFN-γ levels were significantly higher in RAO-affected horses than in the healthy group (p < 0.001). The serum median IFN-α1, IL-1β, IL-2, IL-4, and TNF-α levels were similar in both groups. These results indicate a low variability of the levels of cytokines and a high frequency of their detection in serum samples from horses with RAO. Immune mechanisms involved in equine RAO are more complex than those defined by a simple Th1/Th2 dichotomy.
Źródło:
Polish Journal of Veterinary Sciences; 2016, 19, 4
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-8 z 8

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