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Tytuł:
Preparation of lithium titanate by sol-gel method
Autorzy:
Deptuła, A.
Łada, W.
Olczak, T.
Sartowska, B.
Chmielewski, A.
Alvani, C.
Casadio, S.
Powiązania:
https://bibliotekanauki.pl/articles/147573.pdf
Data publikacji:
2001
Wydawca:
Instytut Chemii i Techniki Jądrowej
Opis:
Medium sized spherical particles of Li2TiO3 (with diameters below 100 mi m) can be prepared from peroxy lithium titanate solution (stabilized with citric acid) by a modified INCT variant of the sol-gel process. The process consists of the following main steps: (I) formation of aqueous phase emulsion in 2-ethylhexanol-1 containing the surfactants 1v/o SPAN-80 and 1v/o Ethomen S-15 (EH); (II) gelation of emulsion drops by extraction of water with partially dehydrated EH; (III) filtration and washing with carbon tetrachloride or acetone; (IV) non-destructive thermal treatment. The tritium release from sol-gel process preparation of Li2TiO3 micro-spheres was found very close to that observed for other traditional material however, the new process is more efficient than other processes because of the morphology of the sintered specimens.
Źródło:
Nukleonika; 2001, 46, 3; 95-100
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of Pt/Al2O3 catalysts produced by sol-gel process to uranyl ion reduction
Autorzy:
Deptuła, A.
Łada, W.
Olczak, T.
Chmielewski, A.
Powiązania:
https://bibliotekanauki.pl/articles/146103.pdf
Data publikacji:
2006
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
sol-gel
Pt/Al2O3 catalysts
uranyl ion reduction
Opis:
Various kinds of active alumina supports were obtained by the Institute of Nuclear Chemistry and Technology (INCT) sol-gel process in the following steps: (1) preparation of alumina sols by extraction of nitrates with Primene JMT from aluminium nitrate solution; (2) gelation to spherical particles (with diameter < 100 žm) by extraction of water from sol emulsion in 2-ethyl-1-hexanol; (3) sometimes conversion of NO3 - stabilized gel to OH- form by reaction with ammonia; (4) calcination of gels to ?-Al2O3 with specific surface area > 100 m2/g at 500°C. The powders were then impregnated with chloroplatinic acid and recalcined at 500°C. Catalysts were also prepared by direct gelation of alumina sol containing hydroplatinic acid followed by steps (3) and (4). Pt/Al2O3 catalysts were used for the reduction of 1M UO2(NO3)2 - 0.5M HCOOH solution with hydrogen at atmospheric pressure. The course of the reduction was controlled analytically and by measuring the U(VI)/U(IV) redox potential. It was concluded that the catalysts obtained by impregnation of the supports prepared from nitrate stabilized gels exhibit the best activity and stability.
Źródło:
Nukleonika; 2006, 51,suppl.1; 79-82
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cytometric analysis of lymphocytes T and B in rabbits infected with non-haemagglutinogenic strains of RHD virus [rabbit heamorrhagic disease] - Rainham, Frankfurt and Asturias
Autorzy:
Niedzwiedzka-Rystwej, P
Deptula, W.
Powiązania:
https://bibliotekanauki.pl/articles/31408.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
T lymphocyte
B lymphocyte
cytometric analysis
rabbit
rabbit hemorrhagic disease virus
infection
animal infection
non-hemagglutinogenic strain
Opis:
The present paper refers to the cytometric analysis of lymphocytes T (with receptor CD5+), Th (with receptor CD4+), Tc/Ts (with receptor CD8+), lymphocytes CD25+ and lymphocytes B with receptor CD19+ in rabbits experimentally infected with strains of RHD virus - Rainham, Frankfurt and Asturias, not having haemagglutinogenic capacities, which makes them unique, as haemagglutinogenic capacity is a classic and typical property of most strains of this virus. The study was performed in the dynamic system, drawing blood samples from animals at hour 0, namely before the administration of the viral antigen, and then at 4, 8, 12, 24 and 36 h after the infection. The study indicated that Rainham and Asturias strains of RHD virus cause a similar amount of changes as the most immunogenic haemagglutinogenic strains CAMP V-561 and CAMP V-562 of the RHD virus do. In contrast, the Frankfurt strain of the RHD virus is characterised with 5-6-fold lower reactivity in this respect and is most similar to the least immunogenic haemagglutinogenic strain CAMP V-558 of the RHD virus.
Źródło:
Polish Journal of Veterinary Sciences; 2010, 13, 1; 157-162
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
F-specyficzne bakteriofagi RNA oraz bakterie z grupy coli w próbkach wody pochodzących ze śródmiejskiego jeziora w Szczecinie
F-specific bacteriophages and bacteria of the coli group in water samples from a small urban lake in Szczecin
Autorzy:
Śliwa-Dominiak, J.
Tokarz-Deptuła, B.
Deptuła, W.
Powiązania:
https://bibliotekanauki.pl/articles/339211.pdf
Data publikacji:
2010
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
bakterie z grupy coli
bakteriofagi F-specyficzne RNA
środowisko wodne
wskaźniki zanieczyszczenia
aquatic environment
coli group bacteria
F-specific RNA bacteriophages
pollution indicators
Opis:
W pracy przedstawiono wyniki badań wody pochodzącej ze śródmiejskiego jeziora Rusałki, zlokalizowanego na terenie Szczecina. Próbki wody badano przez pięć miesięcy, określając w nich obecność F-specyficznych bakteriofagów RNA oraz bakterii z grupy coli. Na podstawie tych badań wykazano duże zanieczyszczenie badanej wody pod względem sanitarnym.
The paper presents results of preliminary studies of water samples originating from the urban lake called Rusałka situated in Szczecin. Water samples were analysed over five months (November 2008-March 2009) and the presence of F-specific RNA bacteriophages and coliform bacteria were investigated. Results obtained in our study show a high pollution of analysed lake. This was confirmed by the presence and a high number of F-specific RNA bacteriophages that are proposed as an alternative pollution indicator in studies of the sanitary state of water basins.
Źródło:
Woda-Środowisko-Obszary Wiejskie; 2010, 10, 2; 189-199
1642-8145
Pojawia się w:
Woda-Środowisko-Obszary Wiejskie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Porównanie aktywności fizycznej oraz ulubionych form spędzania czasu wolnego dziewczynek i chłopców w wieku przedszkolnym z województwa mazowieckiego
Comparison of physical activity and favourite ways of spending free time in preschool girls and boys from the Mazowsze region
Autorzy:
Merkiel, S.
Chalcarz, W.
Deptula, M.
Powiązania:
https://bibliotekanauki.pl/articles/873021.pdf
Data publikacji:
2011
Wydawca:
Narodowy Instytut Zdrowia Publicznego. Państwowy Zakład Higieny
Opis:
Celem niniejszej pracy było porównanie aktywności fizycznej dziewczynek i chłopców w wieku przedszkolnym z województwa mazowieckiego oraz ich ulubionych form spędzania czasu wolnego. Badaniami ankietowymi dotyczącymi aktywności fizycznej objęto 131 dzieci w wieku od 3 do 7 lat. Rodzice dzieci wypełnili ankietę dotyczącą aktywności fizycznej dzieci i ich ulubionych form spędzania czasu wolnego, jak również informacji ogólnych o dzieciach i ich rodzinach. Stwierdzono statystycznie istotny wpływ płci na masę urodzeniową dziecka, uczęszczanie na karate poza przedszkolem oraz na jazdę na rowerze, grę w piłkę i zabawę z psem jako ulubione formy spędzania czasu wolnego podczas ładnej pogody, a także na spędzanie czasu wolnego przed komputerem i zabawę lalkami jako ulubione zajęcia podczas deszczowej pogody. Płeć miała niewielki wpływ na aktywność fizyczną badanych dzieci w wieku przedszkolnym, jednak istotnie zróżnicowała ich ulubione formy spędzania czasu wolnego. Aktywność fizyczna zarówno badanych dziewczynek, jak i chłopców, była niska, podobnie jak u ich rówieśników wcześniej badanych.
The aim of this study was to compare physical activity of preschool girls and boys from the Mazowsze region and their favourite ways of spending free time. The studied population included 131 children aged 3 to 7 years. Parents filled in questionnaires about their children’s physical activity and favourite ways of spending free time, as well as about general information on the children and their families. Gender had statistically significant influence on the children’s birth weight, attending karate outside the preschool and on riding a bicycle, playing with a ball and playing with a dog as favourite ways of spending free time during sunny weather, as well as playing on a computer and playing with dolls as favourite ways of spending free time during rainy weather. Gender had little influence on the studied preschoolers’ physical activity. However, favourite ways of spending free time turned out to be significantly different according to gender. Physical activity level in both girls and boys was low, similarly to their peers from the previous studies.
Źródło:
Roczniki Państwowego Zakładu Higieny; 2011, 62, 1
0035-7715
Pojawia się w:
Roczniki Państwowego Zakładu Higieny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
White and red blood cells picture in rabbits experimentally infected with RHD virus
Autorzy:
Niedzwiedzka-Rystwej, P.
Deptula, W.
Powiązania:
https://bibliotekanauki.pl/articles/30544.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:
Four strains of RHDV assigned as haemagglutinating (Vt97 and Hartmannsdorf) and non-haemagglutinating (Pv97 and 9905) antigenic variants were examined for dynamic changes in the values of white and red blood cells indexes. The study showed differences among strains examined that were not depending on haemagglutination property.
Źródło:
Polish Journal of Veterinary Sciences; 2011, 14, 3
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Lymphocyte subpopulations and apoptosis of immune cells in rabbits experimentally infected with a strain of the RHD virus having a variable haemagglutination capacity
Autorzy:
Niedzwiedzka-Rystwej, P.
Deptula, W.
Powiązania:
https://bibliotekanauki.pl/articles/31022.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
lymphocyte subpopulation
apoptosis
immune cell
rabbit
experimental infection
RHD virus
hemagglutination capacity
granulocyte
T cell
B cell
Opis:
The paper describes the immunological response in the matter of percentage of T cells (receptor CD5+) and subpopulations (Th with receptor CD4+, Tc/Ts with receptor CD8+, T with receptor CD25+) and B cells with receptor CD19+, as well as the percentage of apoptotic granulocytes and lymphocytes, in rabbits experimentally infected with the Hagenow strain of the RHD virus. The material chosen for the experiment is special, as among all strains of RHD virus, there are only two strains which carry the variable haemagglutination capacity of red cells. The results of the study show that the Hagenow strain gives an untypical picture of T and B lymphocytes, whereas the results in inducing apoptosis seems to corespond with previous data, confirming the inclusion of apoptosis from 4 h p.i. and the intensity of the phenomenon being higher in granulocytes.
Źródło:
Polish Journal of Veterinary Sciences; 2012, 15, 1
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Phagocytosis of neutrophils in rabbits infected with antigenic variants of RHD (rabbit haemorrhagic disease) virus
Autorzy:
Niedzwiedzka-Rystwej, P.
Deptula, W.
Powiązania:
https://bibliotekanauki.pl/articles/31977.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
phagocytosis
neutrophil
rabbit
animal infection
antigenic variant
rabbit hemorrhagic disease virus
hemagglutination
Opis:
The present study was aimed at determining changes in chosen elements of phagocytosis in rabbits infected with 3 antigenic variants of RHD – Hartmannsdorf, Pv97 and 9905, which differed in haemagglutination ability. The animals were tested for phagocytosis parameters, and the results revealed that the examined strains showed the differences. These variations regarded mainly Pv97 strain, as the intensity of the changes were 5 times stronger in comparison to strain Hartmannsdorf and 9905. As all of the strains examined are signified as antigenic variants, we have stated that this feature does not determine their immunological picture. The results suggest the existence of immunological dissimilarities among strains of the RHD virus, which was revealed for the first time in antigenic variants.
Źródło:
Polish Journal of Veterinary Sciences; 2012, 15, 1
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Apoptosis of granulocytes and lymphocytes in peripheral blood in rabbits infected with haemagglutinating and non-haemagglutinating antigenic variants of the RHD (rabbit haemorrhagic disease) virus
Autorzy:
Niedzwiedzka-Rystwej, P.
Tokarz-Deptula, B.
Deptula, W.
Powiązania:
https://bibliotekanauki.pl/articles/30375.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:
This paper attempts to study the dynamics of apoptosis of granulocytes and lymphocytes in peripheral blood in rabbits infected with haemagglutinating (Vt97, Triptis, Hartmannsdorf) and non-haemagglutinating (Pv97, 9905 RHDVa) antigenic variants of the RHD virus. The pathogenicity of those antigenic variants was also assessed by recording the mortality of the infected animals. The animals were infected with antigenic variants and blood was sampled at hour 0,4,8,12,24,36 p.i. and the percentage of apoptotic granulocytes and lymphocytes was measured with the use of flow cytometry. The results of the study showed that apoptosis is included during RHDV infection, as the number of apoptotic granulocytes and lymphocytes increases throughout the experiment; depending on the antigenic variant, apoptosis joins in at 4-8-12 h p.i. and lasts until 24-36 h p.i. Furthermore, the mortality of rabbits infected with the examined strains of RHD virus varied from 30% to 100%. This study performed for the first time in this manner, indicates the importance of apoptosis during infection with the RHD virus.
Źródło:
Polish Journal of Veterinary Sciences; 2013, 16, 2
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Autophagy in physiological and pathological processes - selected aspects
Autorzy:
Niedzwiedzka-Rystwej, P.
Tokarz-Deptula, B.
Deptula, W.
Powiązania:
https://bibliotekanauki.pl/articles/31271.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:
This paper describes a model of cell death, called autophagy, one among other typical and atypical processes of cell death. This phenomenon is present in the organism, from conception until death, and is conditioned by many genes of ATG family, or mTOR kinase and specific proteins, like BNIP3. This process plays a very important role not only in physiological functions of the organism but also in pathological, such as Alzheimer or Huntington disease, as well as diseases caused by viruses.
Źródło:
Polish Journal of Veterinary Sciences; 2013, 16, 1
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Lymphocytes T and B in rabbits infected with RHD virus
Autorzy:
Niedzwiedzka-Rystwej, P.
Tokarz-Deptula, B.
Deptula, W.
Powiązania:
https://bibliotekanauki.pl/articles/30261.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:
The aim of this study was to determine the differences in immunological response of animals infected with different antigenic variants of the virus – three haemagglutinating (Vt97, Triptis, Hartmannsdorf) and two non-haemagglutinating (Pv97, 9905 RHDVa). The specific immunological response was measured by the dynamics of changes in the amount of lymphocytes T (with CD5+, CD4+, CD8+, CD25+ receptor) and B (with CD19+ receptor). The study showed differences in immunogenicity of the analysed RHDV antigenic variants, which allowed them to be divided into groups of: more immunogenic strains, including non-haemagglutinating 9905 RHDVa and haemagglutinating Vt97 and Triptis variants; and less immunogenic strains, including the haemagglutinating Hartmannsdorf variant and the non-haemagglutinating Pv97 variant. Such a result may indicate that the agglutination capacity of red blood cells might not be a factor impacting the number of T and B lymphocytes.
Źródło:
Polish Journal of Veterinary Sciences; 2013, 16, 3
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Platelets – an important element of the immune system
Autorzy:
Trzeciak-Ryczek, A.
Tokarz-Deptula, B.
Deptula, W.
Powiązania:
https://bibliotekanauki.pl/articles/31958.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:
Platelets are anucleate cells derived from the megakaryocyte series, and have long been considered only as cells responsible for coagulation and the fibrinolysis process. However, recently more data shows that they are also effector cells in the inflammatory response and important elements of the immunological response. Platelets store and release many biologically active substances, including growth factors, cytokines and chemokines (tab. 1), which actively affect i.a. elements of the immune system, and thus become regulators of immunity and mediators of inflammatory response. Their impact on the immune system cells is also associated with the induction of leucocytes and progenitor cells to the site of pathogen permeation or vascular injury inflow, as well as endothelial cells. Interacting with neutrophils, monocytes and lymphocytes, they not only activate them, but also form platelet-leukocyte aggregates that immobilise pathogens and prevent their spreading. Furthermore, platelets are capable of absorbing pathogens, affecting anti-infection immunity of the system. It is also assumed that the presence of receptors on their surface, such as Toll-like receptors (TLRs), affects their initiation and activity of the immunological response.
Źródło:
Polish Journal of Veterinary Sciences; 2013, 16, 2
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Real time PCR detection of rabbit haemorrhagic disease virus in rabbits infected with different European strains of RHDV
Autorzy:
Niedzwiedzka-Rystwej, P.
Hukowska-Szematowicz, B.
Dzialo, J.
Tokarz-Deptula, B.
Deptula, W.
Powiązania:
https://bibliotekanauki.pl/articles/32493.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:
The paper concerns the use of a novel, very effective diagnostic method, a real-time PCR for diagnosis of a viral agent causing viral haemorrhagic disease in rabbits – RHDV. Until now, the method was widely used for detecting many different viruses, both DNA, and RNA, but as far as RHDV is concerned, there are not many records of such use. This study aimed at the detection of 17 different strains from different European regions, differing in biological features and mortality. The study confirmed that real-time PCR is an applicable and effective method for diagnosis of RHDV, irrespective of the stains’ features.
Źródło:
Polish Journal of Veterinary Sciences; 2013, 16, 1
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
B-cell and T-cell values in peripheral blood in Polish mixed-breed rabbits with addition of blood of meet breeds
Autorzy:
Tokarz-Deptula, B.
Niedzwiedzka-Rystwej, P.
Hukowska-Szematowicz, B.
Adamiak, M.
Trzeciak-Ryczek, A.
Deptula, W.
Powiązania:
https://bibliotekanauki.pl/articles/30822.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:
In Poland, rabbit is a highly valued animal, due to dietetic and flavour values of its meat, but above all, rabbits tend to be commonly used laboratory animals. The aim of the study was developing standards for counts of B-cells with CD19+ receptor, T-cells with CD5+ receptor, and their subpopulations, namely T-cells with CD4+, CD8+ and CD25+ receptor in the peripheral blood of mixed-breed Polish rabbits with addition of blood of meet breeds, including the assessment of the impact of four seasons of the year and animal sex on the values of the immunological parameters determined. The results showed that the counts of B- and T-cells and their subpopulations in peripheral blood remain within the following ranges: for CD19+ B-cells: 1.05 - 3.05%, for CD5+ T-cells: 34.00 - 43.07%, CD4+ T-cells: 23.52 - 33.23%, CD8+ T-cells: 12.55 - 17.30%, whereas for CD25+ T-cells: 0.72 - 2.81%. As it comes to the season of the year, it was observed that it principally affects the values of CD25+ T-cells, while in the case of rabbit sex, more changes were found in females.
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:
Values of white and red blood cell parameters in Polish mixed breed rabbits in the annual cycle
Autorzy:
Tokarz-Deptula, .
Niedzwiecka-Rystwej, P.
Adamiak, M.
Hukowska-Szematowicz, B.
Trzeciak-Ryczek, A.
Deptula, W.
Powiązania:
https://bibliotekanauki.pl/articles/32430.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:
The aim of the study was to develop reference values for such haematologic values as haemoglobin concentration, haematocrit value, volume of erythrocytes, thrombocytes, leucocytes, lymphocytes, neutrophils, basophils, eosinophils and monocytes in peripheral blood in Polish mixed-breed rabbits, considering the impact of the season (spring, summer, autumn, winter), and sex of the animals. The results reveal, that the season of the year has a small impact in Polish mixed-breed rabbits, and it principally referred to spring and summer. Finally it was shown, that sex has average impact on the studied values of haematological parameters.
Źródło:
Polish Journal of Veterinary Sciences; 2014, 17, 4
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 21

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