The success of liver grafts is currently limited by the length of time organs are cold preserved before transplant. Novel insights to improve viability of cold-stored organs may emerge from studies with animals that naturally experience low body temperatures (T(b)) for extended periods. In this study, we tested whether livers from hibernating ground squirrels tolerate cold ischemia-warm reperfu...

in order to investigate the effects of cold stress on antioxidant enzymes and physiological characteristics in chickpea, two separate experiments were conducted at germination and seedling stages. each experiment with six temperature levels (t1(control)=15c°, t2=5c°, t3=0c°, t4=-5c°, t5=-10c° and t6=-15c°) and three varieties (v1=pirouz v2=ilc482 v3=bivaniej) was carried out in a randomized com...

Plasmid-carried quinolone resistance genes, like qnrA, are widespread in Enterobacteriaceae. To gain insight into its little-understood native functions, we studied the effect of environmental conditions on chromosomal qnrA expression in Shewanella algae. Among conditions of DNA damage, oxidative and osmotic stress, starvation, heat, and cold, only cold shock increased gene expression, as measu...

Rhododendron chrysanthum Pall., live in Changbai Mountain being exposed to chilling temperature, high light intensities and water scarcity condition. To adapt to the harsh environment, the cold resistance mechanisms of R. chrysanthum have been successfully evolved in the long-term adaptive process. In our present work, the methods of proteomics combined with physiological and biochemical analys...

The fi(+) and fi(-) R factors are unstable in Vibrio cholerae even on selective media containing antibiotics, although a temperature-sensitive kanamycin resistance factor and its recombinants are stably maintained in V. cholerae at low temperatures.

The phase composition and electrical transport properties of Cu powder obtained by electric spark dispersion and the pellets manufactured from this powder were studied by X-ray phase analysis and electric resistance measurements. The compacted powders were annealed in pure Ar atmosphere. It was shown that electrical resistance of the compacted Cu specimens essentially depends on the annealing t...