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    Wyświetlanie 1-12 z 12
    Tytuł:
    Apoptosis in the gastric mucosa: molecular mechanisms, basic and clinical implications
    Autorzy:
    Szabo, I.
    Tarnawski, A.S.
    Powiązania:
    https://bibliotekanauki.pl/articles/69195.pdf
    Data publikacji:
    2000
    Wydawca:
    Polskie Towarzystwo Fizjologiczne
    Tematy:
    plasma membrane
    molecular mechanism
    epithelial cell
    gastric gland
    gastric mucosa
    mucosal surface
    stomach
    apoptosis
    Helicobacter pylori
    clinical implication
    Źródło:
    Journal of Physiology and Pharmacology; 2000, 51, 1
    0867-5910
    Pojawia się w:
    Journal of Physiology and Pharmacology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Isolation of morphologically and functionally intact gastric mucosal microvessels rapid communication
    Autorzy:
    Tarnawski, A.
    Arakawa, T.
    Sekhon, S.
    Ichikawa, Y.
    Szabo, I.
    Sarfeh, I.J.
    Powiązania:
    https://bibliotekanauki.pl/articles/70609.pdf
    Data publikacji:
    2000
    Wydawca:
    Polskie Towarzystwo Fizjologiczne
    Tematy:
    endothelial cell
    prostacyclin
    isolation
    blood flow
    gastric microvessel
    ultrastructure
    Źródło:
    Journal of Physiology and Pharmacology; 2000, 51, 1
    0867-5910
    Pojawia się w:
    Journal of Physiology and Pharmacology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    ATP-induced Ca2plus-signalling enhances rat gastric microvascular endothelial cell migration
    Autorzy:
    Ehring, G.R.
    Szabo, I.L.
    Jones, M.K.
    Sarfeh, I.J.
    Tarnawski, A.S.
    Powiązania:
    https://bibliotekanauki.pl/articles/70926.pdf
    Data publikacji:
    2000
    Wydawca:
    Polskie Towarzystwo Fizjologiczne
    Tematy:
    gastric endothelial cell
    migration
    ulcer healing
    angiogenesis
    microvasculature
    calcium signalling
    rat
    Źródło:
    Journal of Physiology and Pharmacology; 2000, 51, 4,2
    0867-5910
    Pojawia się w:
    Journal of Physiology and Pharmacology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Isolation and characterization of rat gastric microvascular endothelial cells as a model for studying gastric angiogenesis in vitro
    Autorzy:
    Jones, M.K.
    Wang, H.
    Tomikawa, M.
    Szabo, I.L.
    Kawanaka, H.
    Sarfeh, I.J.
    Tarnawski, A.S.
    Powiązania:
    https://bibliotekanauki.pl/articles/71014.pdf
    Data publikacji:
    2000
    Wydawca:
    Polskie Towarzystwo Fizjologiczne
    Tematy:
    capillary microvessel
    gastric endothelial cell
    T lymphocyte
    endothelial cell
    monoclonal antibody
    monocyte
    angiogenesis
    microvasculature
    stomach
    in vitro
    rat
    platelet
    Źródło:
    Journal of Physiology and Pharmacology; 2000, 51, 4,2
    0867-5910
    Pojawia się w:
    Journal of Physiology and Pharmacology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    "Red book" of the Hungarian landscapes atlas of the threaths on the natural functioning of the 229 Hungarian microregions
    Autorzy:
    Csorba, P.
    Szabo, J.
    Bodnar, R.
    Szilagyi, Z.
    Szabo, G.
    Szabo, S.
    Novak, T.
    Fazekas, I.
    Powiązania:
    https://bibliotekanauki.pl/articles/87960.pdf
    Data publikacji:
    2008
    Wydawca:
    Polskie Towarzystwo Geograficzne
    Tematy:
    indexes for landscape functioning
    landscape fragmentation
    natural hazards
    land use change
    Hungary
    Opis:
    For the good established landscape planning landscape protection and landscape management actions have to take into consideration the actual conditions of the landscape elements. Earlier we dealt with the stability of the landscapes (Kerényi, Csorba, 1996), recently started to investigate the most important factors, which are endangers the proper functioning of the landscapes. Results are calculated for 229 microregions of the country, which are elements of the official landscape hierarchy of Hungary described in the Cadastral of Microregions of Hungary. The average size of the microregions are 100-500 km2. There are certain factors among which some have already elaborated, and others are being worked on yet. Degree of ecological fragmentation of the microregions by roads, railway lines and settlements was determined during the last year. In the case of large settlements the extent of inner parts, traffic intensities of the roads was taken into account, while in the case of railroads it was taken into consideration whether railway lines are single or double tracked. Results were purified using a weighting, where the location of the protected natural areas compared to the situation of the given settlement, roads or railroads was taken into consideration. In the calculations it was taken into account as well that the agglomeration processes of the large settlements may restrict the ecological gates and corridors of the migration of plant and animal species. From the series of maps on natural threats on microregional level, the map of the hazards of drought is presented first. The map gives a definite answer to the question, in which microregions is profitable to establish irrigation systems; and how high is the uncertainty of the rate of their utilization. Global warming, however, may modulate the map resented here remarkably in the next decades. Microregions that have been classified into transition categories with moderate or medium level of drought hazard may fall into categories of serious hazard of drought in the future. A synthesizing map has been completed by summing the seven datasets of the indicator group of natural hazards and the weighting of the subsets. Landscape planning is strongly affected by tendencies of macro economy on the present land use structure. EU agricultural policies have just started to affect strongly on Hungarian land use structure, therefore attempts have been made in order to forecast their impacts. Present Hungarian land use structure has been compared to priorities of the EU. Prospective shifts in land use structure have been determined for the 35 regions of Hungary. According to the 8-10 factors mentioned above, we shall have a detailed database to evaluate the microregions of Hungary in order to characterize the most threatened landscapes, and the most dangerous impacts on the landscape functioning.
    Źródło:
    Prace Komisji Krajobrazu Kulturowego; 2008, 8; 43-60
    1896-1460
    2391-5293
    Pojawia się w:
    Prace Komisji Krajobrazu Kulturowego
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Staff Retention in the IT Pandemic Context
    Autorzy:
    Szabo, Iulia Brigitta
    Balaci, Mariana I
    Powiązania:
    https://bibliotekanauki.pl/articles/2158870.pdf
    Data publikacji:
    2023-01-05
    Wydawca:
    Academicus. International Scientific Journal publishing house
    Tematy:
    IT
    retention
    turnover
    engagement
    pandemic
    pull-push factors
    Opis:
    This study focuses on IT employee retention, particularly during the COVID-19 pandemic. Retaining and employing young IT professionals today is a challenging task for human resources employees. We believe that this is a topical and very relevant topic for the HR field as most companies are facing staff turnover, especially after the COVID-19 pandemic. It is also known that the IT sector is very dynamic and constantly evolving, companies need manpower and competitiveness among employers is high. In addition, a poor retention strategy can have a negative effect on the productivity and work quality of the IT department. And these are some good reasons for a company to invest in a retention strategy. Our research is qualitative in nature and we have sought to identify aspects of employee motivation and satisfaction with the benefits they receive from their employers. Understanding the real needs of IT employees was also one of the aims of this research. The results of the investigation indicated a strong relevance of retention means such as the salary, the team and the good relationship with colleagues, the working environment and the development opportunities available to employees within the company.
    Źródło:
    Academicus International Scientific Journal; 2023, 14, 27; 103-116
    2079-3715
    2309-1088
    Pojawia się w:
    Academicus International Scientific Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    New results of our superoxide dismutase studies and future plans in this fields
    Nowe wyniki badań własnych dysmutazy ponadtlenkowe3 i zamierzenia badawcze
    Autorzy:
    Matkovics, B
    Szabó, L
    Varga, S.I
    Powiązania:
    https://bibliotekanauki.pl/articles/945080.pdf
    Data publikacji:
    1986
    Wydawca:
    Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
    Źródło:
    Acta Universitatis Lodziensis. Folia Biochimica et Biophysica; 1986, 5
    0208-614X
    Pojawia się w:
    Acta Universitatis Lodziensis. Folia Biochimica et Biophysica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of Grinding Fineness of Fly Ash on the Properties of Geopolymer Foam
    Autorzy:
    Szabó, R.
    Gombkötö, I.
    Svéda, M.
    Mucsi, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/355065.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    fly ash
    grinding
    rheology
    geopolymer foam
    cell structure
    Opis:
    Present paper deals with the development of geopolymer foam prepared from ground F class power station fly ash. The effect of the fly ash fineness on the rheology of the geopolymer paste and the foam properties have been investigated. The raw fly ash was ground in a ball mill for various duration, 5, 10, 20, 30, 60 and 120 min. Geopolymer paste was prepared from the raw and ground fly ash with NaOH – sodium silicate mixture as alkaline activator. Geopolymer foam production was made using H2O2 as foaming agent. Additionally, the geopolymer material structure was investigated by Fourier transform infrared spectrometer, the foam cell structure was monitored using optical microscopy. The rheological behaviour of the geopolymer paste changed due to the grinding of fly ash (from Bingham plastic to Newtonian liquid). Grinding of fly ash has a significant effect on the physical properties as well as on the cell structure of the geopolymer foam.
    Źródło:
    Archives of Metallurgy and Materials; 2017, 62, 2B; 1257-1261
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Synergetic use of lignite fly ash and metallurgical converter slag in geopolymer concrete
    Autorzy:
    Mucsi, G.
    Rácz, A.
    Molnár, Z.
    Szabó, R.
    Gombkötö, I.
    Debreczeni, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/88960.pdf
    Data publikacji:
    2014
    Wydawca:
    Politechnika Wrocławska. Wydział Geoinżynierii, Górnictwa i Geologii. Instytut Górnictwa
    Tematy:
    lignite fly ash
    converter slag
    geopolymer concrete
    Opis:
    The application and utilization of the industrial wastes and by-products in the construction industry is a key issue from an environmental and economic point of view. The increased use of lignite has substantially increased the available quantities of lignite fired power plant fly ash, which can be mainly classified as class C fly ash. The utilization of such raw material however has some difficulties. In the present paper lignite fired power station fly ash and metallurgical converter slag were used for the production of geopolymer concrete. The fly ash was used as a geopolymer based binder material, and a converter slag as aggregate, thus created a geopolymer concrete which contains mainly industrial wastes. As preliminary test experimental series were carried out using andesite as aggregate. The optimal aggregate/binder ratio was determined. The effect of the amount of alkaline activator solution in the binder, the aggregate type on the geopolymer concretes compressive strength and density was investigated. Furthermore, the physical properties - freeze-thaw resistance and particle size distribution - of the applied aggregates were measured as well. As a result of the experiments it was found that physical properties of the andesite and converter slag aggregate was close. Therefore andesite can be replaced by converter slag in the concrete mixture. Additionally, geopolymer concrete with nearly 20 MPa compressive strength was produced from class C fly ash and converter slag.
    Źródło:
    Mining Science; 2014, 21; 43-55
    2300-9586
    2353-5423
    Pojawia się w:
    Mining Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of different soil pH on cadmium uptake by the plants
    Autorzy:
    Lehoczky, E.
    Szabo, L.
    Horvath, S.
    Albrecht, G.
    Marth, P.
    Szabados, I.
    Powiązania:
    https://bibliotekanauki.pl/articles/806287.pdf
    Data publikacji:
    1998
    Wydawca:
    Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
    Tematy:
    soil pH
    cadmium uptake
    plant
    pot experiment
    soil reaction
    testing
    maize
    lettuce
    Opis:
    Cadmium is one of the toxic heavy metals which, getting in the nutrition chain through the soil-plant system, is capable of causing harm to human health. The objective of the trial was to study the effect of cadmium load in the soil-plant system. In pot experiments carried out under greenhouse conditions, effect of increasing Cd load on different crop plants (lettuce, maize) was studied. Literature data inform on the decisive role of soil reaction in mobility of cadmium in the soil. The answer was looked for the question of the effect of cadmium treatments at uniform rates on Cd uptake by plants on two soils quite different from each other in pH value. It may be concluded that increasing Cd load can result in the decrease of biomass production of maize and lettuce, but significant differences were obtained only on very acid SN soil. The concentration of Cd in plants increased on both soils as a consequence of growing Cd treatment rates. In corresponding treatments the Cd levels in lettuce and maize plants grown on very acid SE soil were several times higher than in case of plants on the KE soil. Obtained results confirm that Cd mobility on acid soil may be much higher what is clearly reflected in cadmium uptake by plants. On acid soils the cadmium uptake by plants is more intensive, therefore this toxic element is more likely to get in the nutrition chain. Considerable differences in Cd uptake can be detected among the plant species. On the same soil at the same rate of cadmium treatment. Cd level in lettuce plants was by several times higher than in maize. The lettuce plants can accumulate cadmium in the leaves at high concentrations without any visible symptoms. In the experiments no toxicity was observed on test plants.
    Źródło:
    Zeszyty Problemowe Postępów Nauk Rolniczych; 1998, 456
    0084-5477
    Pojawia się w:
    Zeszyty Problemowe Postępów Nauk Rolniczych
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Shock heterogeneity and shock history of the recently found ordinary Csátalja chondrite in Hungary
    Autorzy:
    Kereszturi, A.
    Fintor, K
    Gyollai, I.
    Kereszty, Z.
    Szabo, M.
    Szalai, Z.
    Walter, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/2059757.pdf
    Data publikacji:
    2018
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    meteorite
    shock impact alteration
    ordinary chondrite
    infrared spectroscopy
    Raman spectroscopy
    Opis:
    Shock impact-produced mineral alterations in two thin sections of the recently found Csátalja H4 ordinary chondrite meteorite are compared. Peak positions of Raman and infrared spectra of mineral clasts show peaks shifted in wavenumber relative to unshocked reference minerals, and both peak shifts and FWHM values seem to correlate to each other. In the less shocked thin section (Csátalja-1) a more monomineralic and homogeneous composition indicate shock pressures of <15 GPa, while the more shocked Csátalja-2 indicates shock pressure in the 15–17 GPa range. The highest identified infrared peak position shifts range between –48 and +28 cm–1 with peak broadening between 60–84 cm–1 in the case of the feldspars, which, together with sulphide globules, were produced by the shock itself. Feldspar spectra could be detected only by FTIR spectroscopy, but in most cases (above the S3 shock level) the mixed type of the pyroxene-feldspar spectra (both peaks in the same spectra) is in agreement with the shock-produced secondary feldspars. These grains are located around crystalline borders, and probably formed by selective melting, due to shock annealing. In reconstruction of the shock history, an early fragmentation by a lower shock effect and a later increased shock level-related vein and melt pocket formation occurred, with subsequent shock annealing; temporal reconstruction of the shock event is possible only in part. The joint usage of Raman and infrared spectroscopy provided useful insights into the shock-produced changes and their spatial inhomogeneity, while shocked feldspar could be better detected by infrared than by the Raman method.
    Źródło:
    Geological Quarterly; 2018, 62, 2; 433--446
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Probabilistic model for airport runway safety areas
    Autorzy:
    Szabo, S.
    Vittek, P.
    Kraus, J.
    Plos, V.
    Lališ, A.
    Štumper, M.
    Vajdova, I.
    Powiązania:
    https://bibliotekanauki.pl/articles/374515.pdf
    Data publikacji:
    2017
    Wydawca:
    Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
    Tematy:
    take-off
    landing
    runway
    safety area
    probability
    distance
    start
    lądowanie
    pas startowy
    obszary bezpieczeństwa
    prawdopodobieństwo
    odległość
    Opis:
    The Laboratory of Aviation Safety and Security at CTU in Prague has recently started a project aimed at runway protection zones. The probability of exceeding by a certain distance from the runway in common incident/accident scenarios (take-off/landing overrun/veer-off, landing undershoot) is being identified relative to the runway for any airport. As a result, the size and position of safety areas around runways are defined for the chosen probability. The basis for probability calculation is a probabilistic model using statistics from more than 1400 real-world cases where jet airplanes have been involved over the last few decades. Other scientific studies have contributed to understanding the issue and supported the model’s application to different conditions.
    Źródło:
    Transport Problems; 2017, 12, 2; 89-97
    1896-0596
    2300-861X
    Pojawia się w:
    Transport Problems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-12 z 12

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