Scopul nostru este sprijinirea şi promovarea cercetării ştiinţifice şi facilitarea comunicării între cercetătorii români din întreaga lume.
Escherichia coli O157:H7 continues to be an important human pathogen and has been increasingly linked to foodborne illness associated with fresh produce, particularly leafy greens. The aim of this work was to investigate the fate of E. coli O157:H7 on the phyllosphere of lettuce under low temperature and to evaluate the potential hazard of viable but non-culturable (VBNC) cells induced under such stressful conditions. First we studied the survival
Read moreThere is great evidence regarding the beneficial influence of rose hips on human and animal health. In this respect, fruits of native populations of Rosa spp. collected from the northeastern part of Romania (400-1060 m altitude) were assayed for nutritional and some morphological properties, in order to select the best genotypes. The results show a great quantitative variability of analyzed genotypes, regarding dimensions and biochemical indicators
Read moreThe somatic chromosomes and karyotype traits of three Romanian genotypes (coded as CB-1, S-16, L-4) of Hippophae rhamnoides L. have been studied. Diploid chromosome number is 2n=24. The karyomorphological data show that the complements have small chromosomes (1.33 ± 0.014 – 2.80±0.01 μm, for CB-1 genotype; 1.13 ± 0.029 – 2.90 ± 0.029 μm, for S-16; 1.15 ± 0.099 – 2.88 ± 0.024 μm, for L-4 genotype) and the length of haploid complements
Read morePrincipal limitation of cell therapy is cell loss after transplantation because of the interplay between ischemia, inflammation, and apoptosis. We investigated the mechanism of preconditioning of mesenchymal stem cells (MSCs) with oxytocin (OT), which has been proposed as a novel strategy for enhancing therapeutic potential of these cells in ischemic heart. In this study, we demonstrate that rat MSCs express binding sites for OT receptor and OT receptor
Read moreOsmotic adjustment is one of the important traits, potentially useful for improving plant performance under drought. We tested pollen response to osmotic stress, produced by immersion in 55% or 65% PEG 6000 solutions, without or with addition of KCl, to estimate osmotic adjustment (OA), by using quantitative measurements of projected pollen cytoplasm area, in 43 wheat cultivars. We found large differences between cultivars, both for the effect of
Read moreThe objective of this research is the development of a detailed structural analysis of biocomposites with ceramic matrix of hydroxyapatite (Hap) reinforced by titanium (Ti), elaborated by powder metallurgy technology. Nanometric Hap powders (
Read moreThis research focuses on Ag-Cu powder particles processing by mechanical alloying (MA) route. The powder mixture is representative for the eutectic composition, respectively 72%wt. Ag + 28% wt. Cu. The milling process is developed in high energy ball mill Pulverisette 6, using different size for the milling balls, in wet conditions for 80 hours. One of the most important parameter studied in this research is the particle size distribution of the
Read moreThe biomaterials most widely used for hard tissue implants (in orthopaedics, dental implants, and skull bones) are Ti-based biomaterials and Ti coated with hydroxiapatite (HAP). Because metallic biomaterials have some disadvantages as reported previously (mainly due to the difference between the mechanical characteristics of the human bone and the metallic implant), biocomposites have become an interesting solution to improve the hard tissue implants
Read moreThe Pestera cu Oase is a sealed limestone cavern in southwestern Romania which served principally as a hibernation den for Pleistocene cave bears and wolves, but also contained the fossil remains of the earliest modern humans in Europe. Currently inaccessible except through cave diving and rock climbing, the cave preserved its contents undisturbed for tens of thousands of years. To understand the cave, its contents, the bear and wolves, and especially
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