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    Wyświetlanie 1-6 z 6
    Tytuł:
    Karol Bogusław Reichert (1811–1883): z Kętrzyna do Królewca, Dorpatu, Wrocławia i Berlina
    Karl Bogislaus Reichert (1811–1883): from Kętrzyn to Konigsberg, Dorpat, Wroclaw and Berlin
    Autorzy:
    Komorowski, Andrzej L.
    Powiązania:
    https://bibliotekanauki.pl/articles/1623528.pdf
    Data publikacji:
    2020
    Wydawca:
    Krakowska Akademia im. Andrzeja Frycza Modrzewskiego
    Tematy:
    Karl Bogislaus Reichert
    embryology
    anatomy
    histology
    Karol Bogusław Reichert
    embriologia
    anatomia
    histologia
    Opis:
    Celem artykułu jest przedstawienie postaci urodzonego w Kętrzynie anatoma i embriologa Karola Bogusława Reicherta. Uczeń Johannesa Müllera, profesor uniwersytetów w Dorpacie, Berlinie i we Wrocławiu, zasłynął jako autor teorii rozwoju kosteczek słuchowych z łuków skrzelowych oraz zwolennik teorii Theodora Schwanna dotyczącej rozwoju organizmów żywych z pojedynczych komórek.
    The aim of this paper is to present Karol Boguslaw Reichert, a relatively unknown anatomist and embryologist born in Kętrzyn, Poland. The disciple of Johannes Muller and professor of various universities: Dorpat (Tartu), Berlin and Wrocław, he become famous for his theory of the internal ear bones development from pharyngeal arches. He was also a proponent of Theodor Schwann’s theory on the development of organisms from single cells.
    Źródło:
    Państwo i Społeczeństwo; 2020, 4; 28-33
    1643-8299
    2451-0858
    Pojawia się w:
    Państwo i Społeczeństwo
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Changes in the mechanical properties of femoral cartilage tissue in advanced osteoarthritis
    Autorzy:
    Dragan, Szymon Ł.
    Kuropka, Piotr
    Kulej, Mirosław
    Gabryś, Piotr
    Nikodem, Anna
    Powiązania:
    https://bibliotekanauki.pl/articles/306228.pdf
    Data publikacji:
    2020
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    tkanka chrzęstna
    histologia
    właściwości mechaniczne
    cartilage tissue
    osteoarthritis
    indentation test
    histology
    mechanical properties
    Opis:
    The main goal of this article was the analysis of the changes of mechanical properties, thickness and histology of the cartilage in different regions of the femur head in advanced stage of the osteoarthritis. Methods: The study material consisted of cylindrical specimens (9.7 mm) prepared form proximal epiphysis of the human femur bone after hip arthroplasty. The thickness was determined from the reconstruction of the specimen from microtomography (SkyScan 1172, Bruker®) images. Mechanical properties of the cartilage tissue were identified in static indentation test conducted the use of MTS® Synergie 100 testing machine. Histological study enabled us to determine cartilage total thickness as well as location and orientation of the collagen fibers. Results: Depending on the region of the head, the cartilage tissue thickness was in the range (0.74–2.23 mm). The lowest thickness values were obtained for the R5 region and the lowest for R4. Samples from R1–R4 regions differ by 24%. Measurements of cartilage tissue indentation, determined with the help of Hayes’ formula, showed that the values of mechanical parameters in regions R1, R2, R3 and R5 have similar values (the difference between them is about 5.5%). Region R4, which had the smallest thickness, also had the lowest values of mechanical parameters. Conclusions: Using κ coefficients, proposed by Hayes, enabled us to obtain similar values of mechanical parameters in the regions R1, R2, R3 and R5, despite differences in cartilage tissue thickness. The R4 region, which had the weakest mechanical parameters, was characterized by the strongest reduction of the articular cartilage tissue, which was accompanied by an unformed mass of cartilage residue originating from the abraded surface and bursa fluid.
    Źródło:
    Acta of Bioengineering and Biomechanics; 2020, 22, 1; 143-152
    1509-409X
    2450-6303
    Pojawia się w:
    Acta of Bioengineering and Biomechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Kwalifikacja histologiczna chorych z rakiem odbytnicy w materiale własnym
    Autorzy:
    Rosińska, Marzanna.
    Brocki, Marian.
    Kulig, Andrzej.
    Sapieżko, Jan.
    Howaniec, Józef.
    Powiązania:
    Lekarz Wojskowy 1996, Suplement II, s. [203]-207
    Data publikacji:
    1996
    Tematy:
    Odbytnica nowotwory diagnostyka materiały konferencyjne
    Histologia materiały konferencyjne
    Jelito grube nowotwory diagnostyka materiały konferencyjne
    Opis:
    Tab.; Bibliogr.; Materiały IV Zjazdu Sekcji Chirurgii Wojskowej Towarzystwa Chirurgów Polskich; Bydgoszcz/Pieczyska 5-7.10.1995 r.
    Dostawca treści:
    Bibliografia CBW
    Artykuł
    Tytuł:
    The interaction of laser radiation with tissue in the aspect of generating the process of decellularization in the preparation of animal origin autologous tissue
    Autorzy:
    Kopernik, Magdalena
    Major, Roman
    Lis, Grzegorz
    Wilczek, Piotr
    Lis, Maciej
    Imbir, Gabriela
    Chrouda, Abir
    Mzyk, Aldona
    Ostrowski, Roman
    Sanak, Marek
    Powiązania:
    https://bibliotekanauki.pl/articles/306501.pdf
    Data publikacji:
    2020
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    zastawka aorty
    FEM
    histologia
    promieniowanie laserowe
    decellularized tissue
    aortic valve
    finite element modeling
    histology
    pulmonary valve
    laser radiation
    Opis:
    Purpose: The aim of the work was to create an appropriate substrate for organ transplantation using bioactive tissue-based scaffold populated by cells of the graft recipient. The purpose of the modeling was to investigate the mechanical effects of wave loading of aortic and pulmonary tissue material. Methods: The biological properties of tissues of aortic and pulmonary valves were modified by the process of decellularization. The host cells were removed by various physical methods with focus on minimal degradation of the extracellular matrix. Thus, the decellularization process was controlled by histological methods. The tissue decellularization process was simulated by finite element modelling. Results: The mechanical results represented by a displacement at the center of the sample were coherent and the heterogeneity of the distribution of the caves on the surface of the samples was confirmed, both by experiment and in the simulation by the alternate occurrence of local minima and maxima. The latter results from the uneven removal of cells from the effect of the wave causing decellularization were also predicted by the numerical model. Laser radiation had a destructive effect on the components of the extracellular matrix (e.g., collagen and elastic fibers), mainly depending on the fluence and number of pulses in a single exposure. Conclusions: The differences between the valve tissue materials were shown, and the impact of the process of decellularization on the properties of the tissues was analyzed. It should be emphasized that due to low absorption and high scattering, laser radiation can deeply penetrate the tissue, which allows for effective decellularization process in the entire volume of irradiated tissue.
    Źródło:
    Acta of Bioengineering and Biomechanics; 2020, 22, 1; 67-77
    1509-409X
    2450-6303
    Pojawia się w:
    Acta of Bioengineering and Biomechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Stem chondrichthyan microfossils from the Lower Old Red Sandstone of the Welsh Borderland
    Autorzy:
    Burrow, C. J.
    Turner, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/138801.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    scale histology
    palaeobiogeography
    Lower Devonian
    Lochkovian
    stem gnatho stomes
    Altholepis
    Polymerolepis
    British Isles
    histologia
    paleobiogeografia
    dewon dolny
    lochkov
    Wyspy Brytyjskie
    Opis:
    Placoid and polyodontode scales of stem chondrichthyans have been found in the early Lochkovian “Ditton Group” of the Brown Clee Hill district, Shropshire, England and at Talgarth, south Wales. One of the forms is assigned to a new species of Altholepis Karatajūtė-Talimaa, 1997, a genus already recognised from Lochkovian shallow marine deposits in Celtiberia, Spain and the Northwest Territories, Canada as well as the type locality in Podolia, Ukraine. Altholepis salopensis sp. nov. is based on small polyodontode scales with typically three to eight high odontodes; the scale form was previously considered to belong to acanthodian “Nostolepis” robusta (Brotzen, 1934). The structure of other scales formerly assigned to “Nostolepis” robusta has led us to erect a new genus Jolepis for this scale form, which differs from Altholepis in lacking an ordered layout of odontodes. Jolepis robusta (Brotzen, 1934), originally (and possibly still) considered to be an acanthodian, is also known from the Baltic countries, Russia, and northern Germany (ex erratic limestones). Scales of acanthodian Parexus recurvus Agassiz, 1845, and/or possibly from the stem chondrichthyan Seretolepis elegans Karatajūtė-Talimaa, 1968 (scales of these two taxa are barely distinguishable), and of stem chondrichthyan Polymerolepis whitei Karatajūtė-Talimaa, 1968 are also present. Altholepis, Jolepis gen. nov., Seretolepis Karatajūtė-Talimaa, 1968 and Polymerolepis KaratajūtėTalimaa, 1968 are found in marine deposits elsewhere; the British occurrence of these taxa adds to the debate on the sedimentological origins of the Lower Old Red Sandstone deposits in the Welsh Borderland. The geographic range of several early sharks is now known to extend around the Old Red Sandstone continent and beyond.
    Źródło:
    Acta Geologica Polonica; 2018, 68, 3; 321-334
    0001-5709
    Pojawia się w:
    Acta Geologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Kariera barwników w histologii
    Autorzy:
    Bres, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/856126.pdf
    Data publikacji:
    2012
    Wydawca:
    Polskie Towarzystwo Przyrodników im. Kopernika
    Tematy:
    histologia
    preparaty histologiczne
    techniki barwienia
    barwienie przegladowe
    barwienie trojbarwne
    tkanka nerwowa
    barwienie srebrem
    technika Golgiego
    technika Cajala
    technika Nissla
    technika Weigerta
    barwienie alizaryna
    barwienie histochemiczne
    barwienie immunohistochemiczne
    barwienie fluorescencyjne
    barwniki
    Źródło:
    Wszechświat; 2012, 113, 10-12
    0043-9592
    Pojawia się w:
    Wszechświat
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

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