A series of (Nd1?xSmx)Fe11Ti alloys with the ThMn12 crystal structure have been fabricated and characterized in order to promote a strong uniaxial anisotropy NdFe11Ti without need nitrogenation. The compounds show small changes lattice parameters cell volume, as well Curie temperature spontaneous magnetization. field, however, rapidly increases incorporation Sm overcomes effect nitrogenation, r...

We investigate charge distribution in the recently discovered high-$T_c$ superconductors, layered nickelates. With increasing value of charge-transfer energy we observe expected crossover from cuprate to local triplet regime upon hole doping. find that $d-p$ Coulomb interaction $U_{dp}$ plays a role and makes Zhang-Rice singlets less favorable, while amplitude triplets is enhanced. By investiga...

Proteins related to simian virus 40 (SV40) T antigen uere isolated from cells infected with adenovirus 2/SV40 hybrids Ad2+D2 and Ad2+ND1 dp2 as well as from a line of human cells (SV80) transformed by SV40. The 96,000- and 107,000-dalton proteins of SV80 and Ad2+D2, after injection into the cytoplasm of cultured cells, rapidly accumulate in the nuclei, where they remain antigenically reactive f...

Accurate and reliable quantification of the abundance of mitochondrial DNA (mtDNA) molecules, both wild-type and those harbouring pathogenic mutations, is important not only for understanding the progression of mtDNA disease but also for evaluating novel therapeutic approaches. A clear understanding of the sensitivity of mtDNA measurement assays under different experimental conditions is theref...

The mitochondrial rotenone-sensitive NADH:ubiquinone oxidoreductase (complex I) comprises more than 30 subunits, the majority of which are encoded by the nucleus. In Chlamydomonas reinhardtii, only five components of complex I are coded for by mitochondrial genes. Three mutants deprived of complex I activity and displaying slow growth in the dark were isolated after mutagenic treatment with acr...