Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Ryszard Berkowski"'
Autor:
Dorota Wojcik-Pastuszka, Justyna Krzak, Bartosz Macikowski, Ryszard Berkowski, Bogdan Osiński, Witold Musiał
Publikováno v:
Materials, Vol 12, Iss 8, p 1202 (2019)
Implants are readily applied as a convenient method of therapy. There is great interest in the prolonged release of active substances from implants. The objective of this work was to evaluate the dissolution kinetics of steroidal anti-inflammatory pr
Externí odkaz:
https://doaj.org/article/99cdd5c5a6db4f19b0ef2db4f84a6aa5
Publikováno v:
Current Issues in Pharmacy and Medical Sciences, Vol 28, Iss 4, Pp 225-230 (2015)
A shortage of available experimental data exists in the available bibliography on the release rate of calcium dobesilate (CD) from hydrogel formulations. Thus, the aim of the study was to evaluate the effect of selected hydrophilic nonionic polymers
Publikováno v:
Current Issues in Pharmacy and Medical Sciences, Vol 28, Iss 2, Pp 136-142 (2015)
The aim of the study was to evaluate, in comparison to the reference product, the effect of the hydrophilic nonionic polymers: methylcellulose (MC) and hydroxypropyl methylcellulose (HPMC), as well as the anionic polymers - copolymers of acrylic acid
Publikováno v:
Journal of Molecular Structure. 1071:71-78
Autor:
Ryszard Berkowski, Agnieszka A. Gola, Łukasz Fojcik, Dariusz Sarzyński, Jerzy T. Jodkowski, Zdzisław Latajka
Publikováno v:
Chemical Physics Letters. 597:86-93
The rate constant for H-abstraction ( k H ) from CH 2 ClCH 2 Cl and D-abstraction ( k D ) from CD 2 ClCD 2 Cl by chlorine atoms is described by the expressions: k H = (1.99 ± 0.12) × 10 −11 exp(−777 ± 23/T) cm 3 molecule −1 s −1 and k D =
Publikováno v:
Journal of Molecular Structure. 1052:1-7
The reversible reaction of NO 2 /N 2 O 4 with CF 3 CH(F)CF 2 CH 2 OH and CF 3 CF 2 CF 2 CH 2 OH in the temperature range of 298–358 K by UV–Vis spectrophotometry in the gas phase has been studied. The final products of the reactions: CF 3 CH(F)CF
Autor:
Katarzyna Brudnik, Dariusz Sarzyński, Ryszard Berkowski, Agnieszka A. Gola, Jerzy T. Jodkowski
Publikováno v:
Chemical Physics Letters. 581:30-35
The kinetics of the gas-phase reactions of the chlorine atoms with fluoroethane (C 2 H 5 F) and d -fluoroethane (C 2 D 5 F) was studied experimentally. The relative rate method was applied using Cl + CH 3 Cl as the reference reaction. The rate consta
Autor:
Dariusz Sarzyński, Ryszard Berkowski, Katarzyna Brudnik, Jerzy T. Jodkowski, Agnieszka A. Gola
Publikováno v:
Chemical Physics Letters. 554:20-26
The kinetics of the gas-phase reactions of chlorine atoms with chloroethane and chloroethane-d 5 was studied experimentally. The relative rate method was applied using Cl + CH 3 Cl as the reference reaction. The overall rate constants for H-abstracti