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Wyszukujesz frazę "Pietrzak, H." wg kryterium: Autor

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    Wyświetlanie 1-10 z 10
    Tytuł:
    Analysis of distant sequele of congenital toxoplasmosis in children and adults
    Autorzy:
    Kociecka, W.
    Paprzycki, W.
    Pawlik-Twardosz, H.
    Pietrzak-Kaczmarek, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/840671.pdf
    Data publikacji:
    1998
    Wydawca:
    Polskie Towarzystwo Parazytologiczne
    Tematy:
    parasite
    toxoplasmosis
    patient
    child
    adult
    Źródło:
    Annals of Parasitology; 1998, 44, 3
    0043-5163
    Pojawia się w:
    Annals of Parasitology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Conditions of photodynamic therapy of tumor cells examined by carbonized coal and EPR spectroscopy
    Autorzy:
    Latocha, M.
    Pilawa, B.
    Pietrzak, R.
    Nowicki, P.
    Wachowska, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/284850.pdf
    Data publikacji:
    2008
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
    Tematy:
    centra paramagnetyczne
    PDT
    próby oksymetryczne
    EPR
    paramagnetic centers
    oximetric probes
    Opis:
    Coal samples carbonized at 600°C and TEMPO probes we applied in oximetry. EPR spectra of medium-ranked coal carbonized at 400, 500, and 700 °C were not sensitive to oxygen. Oxygen effects during photodynamic therapy of tumor cells were tested. Oximetric probes were used to examination of singlet oxygen O2 formation in melanotic CRL-1424 tumor cells irradiated by laser (500 mW, Λ = 662 nm) at the presence of photolon as the photosensitizer. Tumor cells were irradiated during 7, 15, and 30 minutes. Changes in EPR spectra of coal probe and TEMPO after excitation of oxygen O2 from triplet ground state (S=1) to diamagnetic singlet (S=0) state were analysed. Measurements of EPR spectra of coal carbonized at 60O°C and TEMPO in: control cell culture, irradiated cells, and cells irradiated at the presence of photolon, were done. After PDT intensity of EPR lines of the used oximetric probes considerably increases. It was proved that the strongest formation of singlet oxygen in the studied cells appears after 15 minutes of laser irradiation.
    Źródło:
    Engineering of Biomaterials; 2008, 11, 73; 6-8
    1429-7248
    Pojawia się w:
    Engineering of Biomaterials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Detection of Trichinella sp.invasion and clinical appraisal of patients in the late stage of trichinellosis in a new epidemic focus in Wielkopolska
    Autorzy:
    Kociecka, W
    Pielok, L.
    Pietrzak, H.
    Gustowska, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/837410.pdf
    Data publikacji:
    1997
    Wydawca:
    Polskie Towarzystwo Parazytologiczne
    Tematy:
    patient
    Trichinella
    diagnosis
    trichinellosis
    clinical analysis
    clinical appraisal
    invasion
    epidemiological analysis
    Wielkopolska region
    Opis:
    A clinical and an epidemiological analysis was presented of a trichinellosis focus from Wielkopolska region. The studies included 20 persons and trichinellosis was diagnosed in 15 cases. The focus was characterized by asynchronous invasion with Trichinella sp. in individual affected persons in the course of a prolonged period (around 2.5 months) and by reporting of the patients to the Clinic during approximately 30 to 90 days after the disease signs/symptoms developed. Retrospective analysis and a set of specialized tests permitted to clarify causes of persisting complaints, presented by the patients, as well as to establish the diagnosis at late stages of trichinellosis.
    Źródło:
    Annals of Parasitology; 1997, 43, 3
    0043-5163
    Pojawia się w:
    Annals of Parasitology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Detection of Trichinella sp.invasion and clinical appraisal of patients in the late stage of trichinellosis in a new epidemic focus in Wielkopolska
    Autorzy:
    Kocięcka, W.
    Pielok, L.
    Pietrzak, H.
    Gustowska, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/2148899.pdf
    Data publikacji:
    1997
    Wydawca:
    Polskie Towarzystwo Parazytologiczne
    Tematy:
    patient
    Trichinella
    diagnosis
    trichinellosis
    clinical analysis
    clinical appraisal
    invasion
    epidemiological analysis
    Wielkopolska region
    Opis:
    A clinical and an epidemiological analysis was presented of a trichinellosis focus from Wielkopolska region. The studies included 20 persons and trichinellosis was diagnosed in 15 cases. The focus was characterized by asynchronous invasion with Trichinella sp. in individual affected persons in the course of a prolonged period (around 2.5 months) and by reporting of the patients to the Clinic during approximately 30 to 90 days after the disease signs/symptoms developed. Retrospective analysis and a set of specialized tests permitted to clarify causes of persisting complaints, presented by the patients, as well as to establish the diagnosis at late stages of trichinellosis.
    Źródło:
    Wiadomości Parazytologiczne; 1997, 43, 3; 257-263
    0043-5163
    Pojawia się w:
    Wiadomości Parazytologiczne
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    EPR Studies of Carbonized Cellulose - Oxygen Interactions
    Autorzy:
    Pilawa, B.
    Pietrzak, R.
    Wachowska, H.
    Babeł, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/2043418.pdf
    Data publikacji:
    2005-07
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    61.66.Hq
    76.30.Rn
    Opis:
    EPR examination of cellulose carbonized at 400ºC and 600ºC has been performed. The aim of this work was to search a sample useful as the oximetric probe in biology and medicine. The higher paramagnetic centers concentration characterizes cellulose carbonized at 600ºC, which was found as the sensitive oximetric probe. Quasi-chemical bonds between cellulose molecules and paramagnetic O$\text{}_{2}$ molecules decrease paramagnetic centers concentration. A linear increase in paramagnetic centers concentration and a linear decrease in EPR linewidth with increasing time of sample evacuation were observed for cellulose carbonized at 600ºC. Oxygen affects spin-lattice interactions in carbonized cellulose.
    Źródło:
    Acta Physica Polonica A; 2005, 108, 1; 151-154
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Heavy Ion Beams for Radiobiology: Dosimetry and Nanodosimetry at HIL
    Autorzy:
    Kaźmierczak, U.
    Bantsar, A.
    Banaś, D.
    Braziewicz, J.
    Czub, J.
    Jaskóła, M.
    Korman, A.
    Kruszewski, M.
    Lankoff, A.
    Lisowska, H.
    Pietrzak, M.
    Pszona, S.
    Stępkowski, T.
    Szefliński, Z.
    Wojewódzka, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/1402627.pdf
    Data publikacji:
    2015-05
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    87.53.Bn
    87.53.-j
    Opis:
    Ionizing radiation induces a variety of DNA lesions, including single and double strand breaks. Large energy deposition precisely localized along the ion track that occurs in the case of heavy ion irradiation can lead to complex types of DNA double strand breaks in exposed biological material. The formation of nuclear double strand breaks triggers phosphorylation of histone H2AX, which can be microscopically visualized as foci in the γ-H2AX assay. Studies with a carbon ion beam are being carried out at the Heavy Ion Laboratory of the University of Warsaw. The γ-H2AX assay as a method of measuring the biological response of cells irradiated with $\text{}^{12}C$ ions as well as the frequency cluster size distributions obtained in the nanodosimetry experiment at HIL will be presented.
    Źródło:
    Acta Physica Polonica A; 2015, 127, 5; 1516-1519
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Influence of land relief and soil properties on stand structure of overgrown oak forests of coppice origin with Sorbus torminalis
    Autorzy:
    Szymura, T.H.
    Szymura, M.
    Pietrzak, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/41135.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Instytut Dendrologii PAN
    Tematy:
    land relief
    soil property
    stand structure
    overgrown coppice oak
    oak forest
    coppice
    Sorbus torminalis
    regeneration
    forest management
    Opis:
    Traditional forest management as coppicing and coppicing-with-standard are recently considered as beneficial for biodiversity in woodlands. Cessation of coppicing leads to changes in stand structure and often loss of biodiversity. In contemporary Polish forestry coppicing is not applied, however some stands of coppice origin persist in Silesia until present. The overgrown coppice oak forests that cover the southern slopes at the foothills of the Sudetes Mountains (Silesia, Central Europe) are considered to be Euro-Siberian steppic woods with a Quercus sp. habitat (91I0): a priority habitat in the European Union, according to the Natura 2000 system. They support one of the largest populations of wild service tree (Sorbus torminalis Crantz) in Poland. In this study we investigated the relation of stand structure and trees parameters with environmental variables. The results showed considerable variability of stand volume, tree density and stems’ size correlated mostly with soil texture, but not nutrient content. We attributed it to soil dryness which seems to be the crucial factor controlling growth of trees. The natural regeneration of trees concentrated mostly on non-exposed sites on less acidic soils, but seedlings of wild service tree were present almost exclusively on most insolated sites, with shallow acidic soils. However, the regeneration of trees in sapling stage was restrained by browsing. Results suggest that maintaining of Sorbus torminalis requires protection against browsing, and some kind of active management is necessary to retain the observed stand structure with high proportion of wild service trees in stands on more fertile soils.
    Źródło:
    Dendrobiology; 2014, 71
    1641-1307
    Pojawia się w:
    Dendrobiology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Multi-Component EPR Spectra of Coals with Different Carbon Content
    Autorzy:
    Pilawa, B.
    Więckowski, A. B.
    Pietrzak, R.
    Wachowska, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/2043651.pdf
    Data publikacji:
    2005-08
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    61.66.Hq
    76.30.Rn
    Opis:
    EPR spectra of lignite"Mequinenza" (Spain) (62.3 wt% C) and Polish orthocoking coal (87.8 wt% C) were compared. The spectra were superpositions of broad Gaussian, broad Lorentzian 1, and narrow Lorentzian 3 lines. Concentration of paramagnetic centers - mainly delocalizedπ electrons - responsible for narrow Lorentzian 3 lines increases with increase in carbon content in coal. Coal units with slow and fast spin-lattice relaxation processes exist in the two studied samples. Slow spin-lattice interactions occur in simple aromatic coal units with broad Gaussian and Lorentzian 1 lines. Fast spin-lattice relaxation processes are characteristic of large aromatic units with narrow Lorentzian 3 lines.
    Źródło:
    Acta Physica Polonica A; 2005, 108, 2; 403-407
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Significance of ultrasonography in evaluation of parotid and submandibular glands in patients with lymphonodular toxoplasmosis
    Autorzy:
    Pietrzak-Kaczmarek, H.
    Kordylewska, M.
    Kociecka, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/839060.pdf
    Data publikacji:
    1998
    Wydawca:
    Polskie Towarzystwo Parazytologiczne
    Tematy:
    toxoplasmosis
    tropical disease
    parotid gland
    diagnosis
    ELISA test
    submandibular gland
    ultrasonography
    Źródło:
    Annals of Parasitology; 1998, 44, 3
    0043-5163
    Pojawia się w:
    Annals of Parasitology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Effect of Ammoxidation Process on $NO_2$ Sorption Abilities of Active Carbons
    Autorzy:
    Nowicki, P.
    Pietrzak, R.
    Dobkiewicz, M.
    Wachowska, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/1536483.pdf
    Data publikacji:
    2010-09
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    81.05.-t
    81.05.Rm
    81.65.-b
    89.60.-k
    Opis:
    The paper presents results of a study on obtaining N-enriched active carbons from Polish brown coal and on their use as adsorbents for removal of pollution from gas phase. The crushed precursor was subjected to carbonisation at 500, 600 and 700°C in argon atmosphere. The chars obtained were activated by KOH at 800°C. The active carbons were further subjected to the ammoxidation at 350°C for 3 h, by a mixture of ammonia and air at the ratio of 1:3. The final products were microporous active carbons of well-developed surface area reaching to 2849 $m^2$/g and pore volume to 1.49 $cm^3$/g, showing mixed acid-base character of the surface. The results have shown that a suitable choice of the carbonisation, activation and ammoxidation procedures for brown coal can lead to obtaining activated carbons with high nitrogen dioxide adsorption ability, reaching from 16.9 to 36.4 mg $NO_2$/g.
    Źródło:
    Acta Physica Polonica A; 2010, 118, 3; 493-499
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-10 z 10

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