37 research outputs found
Cofactor analogue-induced chemical reactivation of endonuclease activity in a DNA cleavage/methylation deficient TspGWI N473A variant in the NPPY motif
Triplet Thermal Relaxation Study as a Probe of Weak Interdimers of Porphyrin Derivatives
The caudal intercarotid artery in species of order perissodactyla
The caudal intercarotid artery was investigated in 6 species of Equidae family and in lowland tapir of Tapiridae family. It was found that this artery connects bilateral intracranial segments of the internal carotid artery. It is located in the cavernous and intercavernous sinuses, caudal to the hypophysis. This artery being constant vessel in horse, is also permanent vessel in other species of Equidae family. It is homologous with anastomising vessel in fishes, amphibia, reptiles and birds
Expert judgement-based tuning of the system reliability neural network
The neural network tuning procedure applied to reliability analyses of anthrop technical systems, based on judgements of experts - experienced operating practicians. Numerical and linguistic elicitation of the judgements, analyses of the network input and output data correlation and of the AHP method processing deviation are presented. Example of data elicitation and correlation analysis of a reliability arrangement of the seagoing ship propulsion system are included to the article
Radiative and nonradiative deexcitation of pigments from natural oils
The absorption, steady state photoacoustic, fluorescence emission
and excitation spectra of unbleached oils obtained by pressing the
seeds of: evening primrose, borage, rape and viper`s burgloss have
been taken. Results obtained for samples under air and washed by
nitrogen have been compared. In order to establish the occurrence of
the slow thermal processes usually related to very photochemically
active triplet states, the thermal deactivation in the absorption
regions of carotenoids and the pheophytins has been observed at
various frequencies of acting light modulations. The interactions
between oil pigments are discussed. The generation of triplet states
of dyes and singlet oxygen production in oils with different content
of carotenoids and pheophytins is evaluated