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Zaburzona równowaga pomiędzy proliferacją a dojrzewaniem i różnicowaniem komórek nowotworowych powoduje szybki wzrost guza, prowadząc do zwiększenia zapotrzebowania na składniki odżywcze, m.in. glukozę i tlen. Pierwszą odpowiedzią komórek nowotworowych na niewystarczającą ilość składników odżywczych jest zmiana metabolizmu na beztlenowy (efekt Warburga). Glukoza niezbędna do przeprowadzenia tego procesu...
The main goal of an article is to identify the possible models of communication in the organization and to indicate the potential communicational barriers. Firstly there has been distinguished three general factors that determine processes of organisational communication - its form and quality and next there have been described six areas important to maintain effectiveness of human communication....
W artykule omówiono problematykę eksploatacji EW Smardzewice oraz zamierzenia modernizacyjne w zakresie układów automatyki i sterowania EW Smardzewice mające na celu dostosowanie jej pracy do warunków gospodarki rynkowej.
Numerical computations of the yttrium distribution in the BaO-CuO melt were performed for the single crystal growth of yttrium barium copper oxide superconductor (YBa_2Cu_3O_(7-x)) with the Czochralski method. The finite volume method was used to calculate the fluid flow, heat transfer and yttrium distribution in the melt with staggered numerical grid. The flow in the melt was assumed to be axisymmetric...
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