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Stetskiv A.,Ivano Frankivsk National Medical University | Rozdzynska-Kielbik B.,Cze stochowa Jan Dlugosz University | Kowalczyk G.,Cze stochowa Jan Dlugosz University | Prochwicz W.,Cze stochowa Jan Dlugosz University | And 3 more authors.
Solid State Sciences

The structural and thermal stability, electrochemical hydrogenation and corrosion behavior of LaT5-x(M/Li)x (T = Co, Ni and M = Al, Ge) alloys have been investigated using x-ray diffraction, SEM with WDS/EDX, DSC and electrochemical techniques. The prepared ternary and quaternary samples are solid solutions on the base of binary LaCo5 and LaNi5 compounds with hexagonal CaCu5 structure type. By partial substitution of transition metals (Ni and Co) by Al, Ge and Li in the LaT5-x(M/Li)x alloys the discharge capacity increased by 25%. Doping of LaCo5 and LaNi5 binary phases by Al, Ge and Li improves corrosion resistance, thermal stability and absorption capacity during the electrochemical hydrogenation. These alloys passivate effectively in strong alkaline solution. © 2014 Elsevier Masson SAS. All rights reserved. Source

Myga-Nowak M.,Cze stochowa Jan Dlugosz University | Bandurska K.,Cze stochowa Jan Dlugosz University | Paczynska J.,Cze stochowa Jan Dlugosz University | Szybecka A.,Cze stochowa Jan Dlugosz University | Krupa P.,Cze stochowa Jan Dlugosz University
Archives of Environmental Protection

This study characterizes mycorrhiza helper bacteria (MHB) from selected unpolluted locations as well as subjected to industrial emissions. To determine the species of bacteria isolated from the roots of ectomycorrhizal pine and birch, a method based on the sequence analysis of a 16S rRNA gene was used. The isolated bacteria were initially characterized by available biochemical methods and phenotypic observation. On the selected bacteria representatives isolation of DNA was performed, on which the PCR reaction was carried out. In this way amplified samples were automatically sequenced and the obtained results were compared to public databases. Among the isolated bacteria Pseudomonas fluorescens SBW25 and Burkholderia xenovorans LB400 species were dominant. © Copyright by Polish Academy of Sciences and Institute of Environmental Engineering of the Polish Academy of Sciences, 2014. Source

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