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    Wyświetlanie 1-19 z 19
    Tytuł:
    Force analysis of shoulder joint muscles in the early phase of brain stroke
    Autorzy:
    Starosta, M.
    Kostka, J.
    Miller, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/306827.pdf
    Data publikacji:
    2018
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    siła mięśni
    staw ramienny
    udar
    dynamometr
    muscle force
    upper limb
    shoulder joint
    stroke
    dynamometer
    Opis:
    Upper limb impairment in the early phase of brain stroke is one of the key problems in rehabilitation. An estimation of muscle force can be a helpful factor for functional improvement after a stroke. The primary goals of this study were to determine the muscles with the lowest force in the affected (A) and non-affected (non-A) upper limb. Moreover, the differences between men and women were compared and these values were correlated with age. Methods: One hundred (n = 35 female, n = 65 male) post-stroke patients met the inclusion criteria. The mean age of the study participants was 66.1 years. Muscle force for external and internal rotators of shoulder was measured with handheld dynamometer. Moreover, the correlation coefficients for differences in muscular force with the patient’s age were estimated. Results: Our study reports that the force of the (A) side in relation to the (non-A) was by 37% weaker. We observed about a 40% decrease in the force of the shoulder’s external rotation (female – 42%; male – 41%) and shoulder’s flexion (by 38% – female; 40% – male). Significant correlations between the muscle force and the age of post-stroke patients were also found. It was concluded that about 4 weeks after the first stroke in the patient’s life, the external rotators are the most affected group of shoulder muscles. Conclusions: Neither sex nor the side of the ischemic brain injury influence the muscle force, whereas age determines both muscle force and muscle force deficits. Older post-stroke patients demonstrate fewer deficits in muscle strength than younger ones.
    Źródło:
    Acta of Bioengineering and Biomechanics; 2018, 20, 3; 107-113
    1509-409X
    2450-6303
    Pojawia się w:
    Acta of Bioengineering and Biomechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Optical properties of (3-(acetamidomethyl)phenyl)boronic acid and its interactions with selected sugars
    Autorzy:
    Kur, K.
    Przybyt, M.
    Miller, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/410414.pdf
    Data publikacji:
    2018
    Wydawca:
    Politechnika Łódzka. Wydawnictwo Politechniki Łódzkiej
    Tematy:
    (3-(Acetamidomethyl)phenyl)boronic acid
    quenching constant
    pK
    lifetime
    3AAPBA
    stała wygaszania
    trwałość
    Opis:
    (3-(Acetamidomethyl)phenyl)boronic acid (3AAPBA)has at pH 7 absorbance maximum at 270 nm with molar absorbance coefficient 516 M-1cm-1. 3AAPBA exhibits weak fluorescence with maximum at 297 nm and quantum yield 0.062 ± 0.001. Fluorescence decay is monoexponential and the lifetime is 2.05 ± 0.01 ns. Interactions of 3AAPBA with selected sugars were studied by absorbance, steady-state and time-resolved fluorescence measurements. At pH 7 fluorescence of 3AAPBA is quenched only by fructose (with quenching constant 67.9 M-1) and to some extend by galactose. Addition of these two monosaccharides causes also changes of absorbance spectra of 3AAPBA. Acid-base dissociation of free 3AAPBA and its esters with sugars was studied by absorbance and steady-state fluorescence measurements in pH range from 4.5 to 11.00. Esterification of phenylboronic acid derivatives by sugars leads to increased acidity of them. In case of 3AAPBA the obtained values of pK indicate that affinity of studied sugars towards it can be ordered as follows: fructose > galactose > glucose > maltose > lactose > sucrose. At pHs higher than pK the fluorescence decays turn to biexponential with additional shorter component in lifetime which we propose to attribute to anionic form of 3AAPBA or its esters.
    Źródło:
    Biotechnology and Food Science; 2018, 82, 1; 15-27
    2084-0136
    2299-6818
    Pojawia się w:
    Biotechnology and Food Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The DFT study on the electronic structure of boronic acid derivatives and its esters with fructose
    Autorzy:
    Kur, K.
    Kowalska-Baron, A.
    Miller, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/410471.pdf
    Data publikacji:
    2018
    Wydawca:
    Politechnika Łódzka. Wydawnictwo Politechniki Łódzkiej
    Tematy:
    boronic acid derivatives
    TD-DFT method
    boronic esters with fructose
    pochodne kwasu boronowego
    metoda TD-DFT
    estry boronowe
    Opis:
    Theoretical investigations are carried out to examine the geometrical structure and parameters of electron transitions to the lowest excited states of two boronic acid derivatives: 3-aminophenylboronic acid and 3-(acetamidomethyl)phenyl boronic acid and its cycling esters with fructose, using the DFT based 6-31 G(d,p) method. The most stable ester isomer of each acid has been selected. Predicted excitation wavelength are shorter (less than 0.5 eV) than experimental ones, what is in a good agreement considering limitations of the DFT method. In case of almost every calculated molecule the analysis of electronic transitions shows that transition S0→S1 involves electron transfer mainly from the HOMO to LUMO orbital.
    Źródło:
    Biotechnology and Food Science; 2018, 82, 1; 29-39
    2084-0136
    2299-6818
    Pojawia się w:
    Biotechnology and Food Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analysis of upper limb muscle strength in the early phase of brain stroke
    Autorzy:
    Starosta, M.
    Kostka, J.
    Redlicka, J.
    Miller, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/306344.pdf
    Data publikacji:
    2017
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    siła mięśni
    kończyna górna
    udar
    dynamometr
    muscle strength
    upper limb
    stroke
    dynamometer
    Opis:
    Purpose: The aim of this study was to determine the muscles with the lowest strength in nonaffected (non-A) and affected upper limb (A), to assess differences between men and women and to correlate these values with age in patients after stroke. Methods: Sixty hospitalized in Neurorehabilitation Ward patients (40 male, 20 female), 1-2 weeks after stroke, were enrolled to the study. Their age ranged from 50 to 80 years with a mean (sd) of 65,5 (18,7) years. Muscle force values from upper limb muscles were measured using the MicroFet 2 hand-held dynamometer. The results are displayed in newtons [N], mean values of muscular force, effect sizes and confidence intervals displayed as Cohen’s d and 95% CI were determined. Moreover, we made the coefficients correlation for differences in muscular force versus the Rivermead Motor Assessment (RMA) arm section. Results: Strength of (A) upper limb in comparison to (non-A) was 39% weaker. The severely affected muscle groups were the shoulder flexion 41% (women) versus 46% (men); elbow flexion 39% (women) versus 31% (men); wrist extension 36% (women) versus 42% (men). No significant correlations were found between muscle strength results and RMA or age. Conclusions: Muscle force of (A) upper limb after stroke demonstrates 39% decrease. Men show more significant decrease than women (40% vs 35%). Functional assessment in RMA values show the better results in women (4,9 ± 4,1) than men (3,4 ± 3,2).
    Źródło:
    Acta of Bioengineering and Biomechanics; 2017, 19, 3; 85-91
    1509-409X
    2450-6303
    Pojawia się w:
    Acta of Bioengineering and Biomechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Suidae and Sanitheriidae from Wadi Moghra, Early Miocene, Egypt
    Autorzy:
    Pickford, M.
    Miller, E.R.
    El-Barkooky, A.N.
    Powiązania:
    https://bibliotekanauki.pl/articles/20171.pdf
    Data publikacji:
    2010
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    Suidae
    Sanitheriidae
    Wadi Moghra
    Early Miocene
    Miocene
    Egypt
    paleontology
    Mammalia
    biochronology
    Africa
    paleoenvironment condition
    Opis:
    New suid and sanithere material from Wadi Moghra, early Miocene, Egypt, is described and discussed. The new material greatly improves the sample size and diversity of suoids known from North Africa, and includes one species of Sanitheriidae and three species of Kubanochoerinae. The Moghra suoid assemblage most closely resembles that from Gebel Zelten, Libya, suggesting that at least part of the Moghra deposits may overlap in time with part of Zelten, i.e., is equivalent in age to MN 4–5 of the European mammal zonation, or PIII of the East African one. Information from suids and sanitheres is consistent with previous interpretations, that the Moghra deposits were formed under swampy and littoral paleoenvironmental conditions.
    Źródło:
    Acta Palaeontologica Polonica; 2010, 55, 1
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Systematics and paleobiology of Carnivora and Hyaenodonta from the lower Miocene of Buluk, Kenya
    Autorzy:
    Morlo, M.
    Friscia, A.
    Miller, E.R.
    Locke, E.
    Nengo, I.
    Powiązania:
    https://bibliotekanauki.pl/articles/2082322.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    Mammalia
    Carnivora
    Amphicyonidae
    Hyainailouridae
    Viverridae
    guild structure
    Miocene
    Kenya
    Opis:
    Early Miocene carnivorous mammals from Buluk, Kenya, are described and discussed. Four taxa belonging to Hyaenodonta and four belonging to Carnivora are identified. Members of Hyaenodonta include Hyainailouros sulzeri, Hyainailouros cf. napakensis, a third taxon about the size of Leakitherium, represented only by postcranial material, and a fourth taxon represented by an edentulous jaw, in the size range of Sectisodon. Members of Carnivora include a new species of Cynelos jitu, which represents the largest species of Cynelos known. The first m2 of Cynelos macrodon is described, and the differentiation of this species from Cynelos ginsburgi and Cynelos peignei is confirmed. A third carnivoran species is represented by a mandibular fragment attributed to a viverrid similar to Mioprionodon, and a fourth taxon is represented by a feliform distal humerus, the size of that of a small cat. An ecomorphological guild structure analysis reveals that the Buluk carnivore have estimated body sizes spanning from <1 kg to >100 kg. Three very large species (>100 kg), and another two in the 30–100 kg range are present, while only two taxa are present in the 3–10 kg category. Carnivores in the 1–3 kg and the 10–30 kg categories are absent. Locomotor pattern could be obtained for only four taxa, and all are characterized by terrestrial locomotion. A minimum of three dietary classes (insectivorous, carnivorous, scavenging) are represented. The co-occurrence of multiple very large carnivores is not uncommon in early Miocene faunas, but the taphonomy of Buluk may also contribute to the favored preservation of larger and terrestrially adapted animals.
    Źródło:
    Acta Palaeontologica Polonica; 2021, 66, 2; 465-484
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Advancements in near-surface seismicreflection acquisition
    Autorzy:
    Miller, B. E.
    Tsoflias, G. P.
    Steeples, D. W.
    Powiązania:
    https://bibliotekanauki.pl/articles/115499.pdf
    Data publikacji:
    2010
    Wydawca:
    Fundacja na Rzecz Młodych Naukowców
    Tematy:
    near-surface seismology
    near-surface seismic refl ection
    near-surface seismic acquisition
    Opis:
    3-D seismic refl ection methods have been established as the predominant seismic method for hydrocarbon exploration. While this is true for exploration scale surveys the same is not yet true for near-surface seismic refl ection investigations. While the benefi ts of employing 3-D methods have been documented they are yet to be fully adopted by the near-surface community. There are a number of reasons for this; primary among them is the labor involved with planting and re-cabling large numbers of geophones. The amount of time and labor involved in these operations has been a direct hindrance for 3-D investigations of the near-surface. To help overcome these limitations The University of Kansas geophysics group has developed a portable, automated seismic data acquisition system, known as the autojuggie. The autojuggie allows for effi cient ultra-shallow seismic imaging and is capable of quickly performing non-invasive, high-resolution 2-D or 3-D seismic surveys by deploying a dense array of geophones.
    Źródło:
    Challenges of Modern Technology; 2010, 1, 1; 14-18
    2082-2863
    2353-4419
    Pojawia się w:
    Challenges of Modern Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Plazmowe przetwarzanie biomasy odpadowej
    Treatment of waste biomass using plasma technology
    Autorzy:
    Mączka, T.
    Miller, R.
    Kordylewski, W.
    Śliwka, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/357587.pdf
    Data publikacji:
    2013
    Wydawca:
    Politechnika Śląska
    Tematy:
    biomasa
    plazma
    odpady
    zgazowanie
    piroliza
    biomass
    plasma
    waste
    gasification
    pyrolysis
    Opis:
    W pracy opisano ideę metody pozyskiwania paliw w procesie plazmowego przetwarzania odpadów, w tym biomasy roślinnej. Podano koncepcję plazmowego przetwarzania materiałów organicznych i przedstawiono opracowaną na tej podstawie prototypową instalację do plazmowego zgazowania/pirolizy. Opisano ogólną zasadę działania plazmowej instalacji zgazowującej i rolę jej poszczególnych elementów w procesie przetwarzania. Podano podstawowe parametry pracy instalacji wyznaczone w trakcie prac nad jej rozruchem. Podano również kierunki dalszych prac nad optymalizacją działania powstałej instalacji, mających na celu opracowanie efektywnej technologii pozyskiwania paliw płynnych ze zgazowania/pirolizy odpadów organicznych, w tym zawierających związki organiczne zakwalifikowane jako odpady niebezpieczne.
    The paper presents the idea of obtaining fuels in a process of plasma treatment of organic materials, including biomass. It introduces the concept of plasma treatment of organic matter and shows the prototype installation developed for the purpose of plasma gasification/pyrolysis. A general principle of plasma gasification/pyrolysis installation operation and the role of its particular elements in the gasification process were described. The basic parameters of the installation operation determined during the works on start-up system were given. There were also presented courses of further investigations on optimization of this installation in order to develop more effective technology of gaining liquid fuels by gasification/pyrolysis of organic wastes including organic compounds qualified as hazardous wastes.
    Źródło:
    Archiwum Gospodarki Odpadami i Ochrony Środowiska; 2013, 15, 1; 19-28
    1733-4381
    Pojawia się w:
    Archiwum Gospodarki Odpadami i Ochrony Środowiska
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of oxidation on the wetting of coal surfaces by water: experimental and molecular dynamics simulation studies
    Autorzy:
    Li, E.
    Lu, Y.
    Cheng, F.
    Wang, X.
    Miller, J. D.
    Powiązania:
    https://bibliotekanauki.pl/articles/109792.pdf
    Data publikacji:
    2018
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    wettability
    oxidation
    molecular dynamics simulation
    hydrogen bonding
    contact angles
    coal surfaces
    Opis:
    The wettability of coal surfaces by water continues to be one of the key factors which determines the success of coal flotation. Consequently, oxidation of coal surfaces is a fundamental issue of interest. In this work, the effect of oxidation on the wetting of coal surfaces and the interaction between water molecules and oxygen-containing sites at the coal surface was investigated based on advancing/receding contact angle measurements and molecular dynamics simulations. For the simulation studies, a flat coal surface was constructed with the assistance of the molecular repulsion between graphite surfaces and the assembly of Wiser coal molecules. Our results indicated that the simulated advancing and receding contact angles were very similar, and both of them decreased, as expected, with an increase of hydroxyl sites at the coal surface. The good agreement between the simulated advancing/receding contact angles and the experimental receding contact angle values suggested that the configuration of the systems and the set of parameters for the simulation were appropriate. The spreading of water is mainly due to the hydrogen bonds formed between the interfacial water molecules and the hydroxyl sites at the coal surface. The hydroxyl groups show stronger hydration capacity than other oxygen-containing groups according to the calculated hydrogen bonds and interaction energies.
    Źródło:
    Physicochemical Problems of Mineral Processing; 2018, 54, 4; 1039-1051
    1643-1049
    2084-4735
    Pojawia się w:
    Physicochemical Problems of Mineral Processing
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wpływ odczynu na uruchamianie niklu z popiołów lotnych
    Effect of pH on nickel release from fly ashes
    Autorzy:
    Kukier, U.
    Ishak, C.F.
    Miller, W.P.
    Sumner, M.E.
    Powiązania:
    https://bibliotekanauki.pl/articles/798557.pdf
    Data publikacji:
    1997
    Wydawca:
    Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
    Źródło:
    Zeszyty Problemowe Postępów Nauk Rolniczych; 1997, 448b
    0084-5477
    Pojawia się w:
    Zeszyty Problemowe Postępów Nauk Rolniczych
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Silurian stratigraphy of Central Iran - an update
    Autorzy:
    Hairapetian, V.
    Ghobadi Pour, M.
    Popov, L. E.
    Männik, P.
    Miller, C. G.
    Powiązania:
    https://bibliotekanauki.pl/articles/139183.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    Iran
    Silurian
    biostratigraphy
    lithostratigraphy
    sedimentology
    correlation
    sylur
    biostratygrafia
    litostratygrafia
    sedymentologia
    korelacja
    Opis:
    The Silurian biostratigraphy, lithostratigraphy, and facies of Central Iran including the Kashmar (Boghu Mountains), Tabas (Derenjal Mountains, Ozbak-Kuh), Anarak (Pol-e Khavand) and Kerman regions is reviewed and updated. The current state of knowledge of the Silurian in the Zagros Basin, Alborz, Kopet-Dagh and Talysh regions, as well as in a few areas scattered across the Sabzevar Zone, and the Sanandaj-Sirjan terranes is also reviewed. Silurian volcanism in various parts of Iran is briefly discussed. The end of the Ordovician coincided with a widespread regression across Iran synchronous with the Hirnantian glaciation, and only in the Zagros Basin is there a continuous Ordovician–Silurian transition represented by graptolitic black shales of the Sarchahan Formation. In the Central-East Iranian Platform marine sedimentation re-commenced in the early to mid Aeronian. By the Sheinwoodian, carbonate platform depositional environments were established along its north-eastern margin. In other parts of Iran (e.g., Kopet-Dagh and the Sabzevar Zone), siliciclastic sedimentation continued probably into the late Silurian. The Silurian conodont and brachiopod biostratigraphy of Central Iran is significantly updated facilitating a precise correlation with the Standard Global Chronostratigraphic Scale, as well as with key Silurian sections in other parts of Iran. The Silurian lithostratigraphy is considerably revised and two new lithostratigraphical units, namely the Boghu and Dahaneh-Kalut formations, are introduced.
    Źródło:
    Acta Geologica Polonica; 2017, 67, 2; 201-233
    0001-5709
    Pojawia się w:
    Acta Geologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Fermi Surface-Brillouin Zone Interactions in 2/1-2/1-2/1 Bergman-Type Approximant $Na_{27}Au_{27}Ga_{31}$
    Autorzy:
    Mizutani, U.
    Sato, H.
    Inukai, M.
    Zijlstra, E.
    Lin, Q.
    Corbett, J.
    Miller, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/1373341.pdf
    Data publikacji:
    2014-08
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    71.23.Ft
    71.20.Dg
    71.15.Mb
    Opis:
    The X-ray diffraction studies on a newly synthesized $Na_{26}Au_{25}Ga_{29}$ single crystal revealed the formation of a single phase 2/1-2/1-2/1 Bergman-type approximant and the presence of Au/Ga mixed occupancies in its unit cell containing 680 atoms. The structure model of the 2/1-2/1-2/1 approximant with composition $Na_{27}Au_{27}Ga_{31}$ was constructed by eliminating the chemical disorder with a minimum sacrifice of composition displacement. The full potential linearized augmented plane wave electronic structure calculations with subsequent full potential linearized augmented plane wave-Fourier analysis were performed for the 2/1-2/1-2/1 approximant $Na_{27}Au_{27}Ga_{31}$ with space group Pa3̅. The square of the Fermi diameter $(2k_{F})^2$, electrons per atom ratio e/a and the critical reciprocal lattice vector $|G|^2$ are determined. A shallow pseudogap at the Fermi level was interpreted as originating from interference of electrons having $(2k_{F})^2$=109.2±1.0 with sets of lattice planes with $|G|^2$'s centered at 108. The effective e/a value for the compound is found to be 1.76 in good agreement with 1.73 derived from a composition average of $(e/a)_{Na}$=1.0, $(e/a)_{Au}$=1.0 and $(e/a)_{Ga}$=3.0.
    Źródło:
    Acta Physica Polonica A; 2014, 126, 2; 535-538
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Adsorption of hexane and cyclohexane vapours at the water drop surface
    Autorzy:
    Miller, R.
    Aksenenko, E. V.
    Kovalchuk, V. I.
    Tarasevich, Y. I.
    Fainerman, V. B.
    Powiązania:
    https://bibliotekanauki.pl/articles/110244.pdf
    Data publikacji:
    2018
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    water-heptane vapour interface
    drop profile analysis tensiometry
    dynamic surface tension
    adsorption kinetics
    Opis:
    The dependence of the dynamic surface tension of water at the interface with saturated hexane and cyclohexane vapours was measured by the drop profile analysis method. The surface tension for the adsorption layers of cyclohexane at different temperatures was compared with the results reported earlier for the adsorption of hexane and other alkanes from the vapour phase on water drops. It is shown that cyclohexane is adsorbed significantly slower than the adsorption of hexane occurs, and is characterised by a much larger induction time. The error in the drop radius measurements at 40 ºC attains 45 m. The experimental rheologic characteristics of the adsorbed layers are studied and the results are compared with the model developed to describe an adsorption process governed by a kinetic mechanism.
    Źródło:
    Physicochemical Problems of Mineral Processing; 2018, 54, 1; 54-62
    1643-1049
    2084-4735
    Pojawia się w:
    Physicochemical Problems of Mineral Processing
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    No greens in the forest? Note on the limited consumption of greens in the Amazon
    Autorzy:
    Katz, E.
    Lopez, C.L.
    Fleury, M.
    Miller, R.P.
    Paye, V.
    Dias, T.
    Silva, F.
    Oliveira, Z.
    Moreira, E
    Powiązania:
    https://bibliotekanauki.pl/articles/58954.pdf
    Data publikacji:
    2012
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2012, 81, 4
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Preliminary evaluation of selected biologic properties of TiO2 and SiO2 layers on metallic substrates
    Autorzy:
    Urbański, W.
    Dragan, S.
    Gębarowska, E.
    Dzięgiel, P.
    Krzak-Roś, J.
    Miller, M.
    Pezowicz, C.
    Będziński, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/284506.pdf
    Data publikacji:
    2010
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
    Tematy:
    sol-gel coating
    fibroblast
    cytotoxicity
    orthopaedic implant
    Opis:
    Despite of applying modern biomaterials during constructing long term orthopaedic implants, in clinical practice there are still present wide range of complications, particularly concerning matter of implant - tissue interactions. Since interaction between implant and living tissue depends mainly on biomaterial surface features, we decided to modify orthopaedic alloys to improve their biological properties. The object of this experiment was in vitro evaluation of selected biological properties, particularly cytotoxicity of titanium alloy and 316L stainless steel substrates coated with SiO2 or TiO2 thin films. The coatings were synthesized by sol-gel method. Each samples was placed into mouse fibroblast culture. The cultures in presence of tested materials were maintained for three days. We found no distinct toxic effect of tested biomaterials. We noticed increase of fibroblast proliferation in cultures with uncoated titanium and particularly SiO2 coated titanium plates.
    Źródło:
    Engineering of Biomaterials; 2010, 13, no. 96-98; 129-133
    1429-7248
    Pojawia się w:
    Engineering of Biomaterials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    GROM na pierwszy ogień : polscy żołnierze szykują się do Afganistanu
    Autorzy:
    Lentowicz, Zbigniew.
    E.Cz.
    Miller, Leszek.
    Buzek, Jerzy.
    Komorowski, Bronisław (1952- ).
    Kaczyński, Lech.
    Macierewicz, Antoni (1948- ).
    Lepper, Andrzej.
    Onyszkiewicz, Janusz.
    Dobrzański, Stanisław.
    Powiązania:
    Rzeczpospolita 2001, nr 274, s. A3
    Data publikacji:
    2001
    Tematy:
    Operacja antyterrorystyczna 2001- w Afganistanie planowanie udział Polski
    Opis:
    Fot.; Zawiera oświadczenia Prezesa Rady Ministrów Leszka Millera oraz opinie Jerzego Buzka, Bronisława Komorowskiego, Lecha Kaczyńskiego, Antoniego Macierewicza, Andrzeja Leppera, Janusza Onyszkiewicza i Stanisława Dobrzańskiego.
    Dostawca treści:
    Bibliografia CBW
    Artykuł
    Tytuł:
    GROM na pierwszy ogień : polscy żołnierze szykują się do Afganistanu
    Autorzy:
    Lentowicz, Zbigniew.
    E.Cz.
    Miller, Leszek.
    Buzek, Jerzy.
    Komorowski, Bronisław (1952- ).
    Kaczyński, Lech.
    Macierewicz, Antoni (1948- ).
    Lepper, Andrzej.
    Onyszkiewicz, Janusz.
    Dobrzański, Stanisław.
    Powiązania:
    Rzeczpospolita 2001, nr 274, s. A3
    Data publikacji:
    2001
    Tematy:
    Operacja antyterrorystyczna 2001- w Afganistanie planowanie
    Anti-terrorist operations
    Opis:
    Fot.
    Zawiera oświadczenia Prezesa Rady Ministrów Leszka Millera oraz opinie Jerzego Buzka, Bronisława Komorowskiego, Lecha Kaczyńskiego, Antoniego Macierewicza, Andrzeja Leppera, Janusza Onyszkiewicza i Stanisława Dobrzańskiego.
    Dostawca treści:
    Bibliografia CBW
    Artykuł
      Wyświetlanie 1-19 z 19

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