446 research outputs found
BRST Hamiltonian for Bulk-Quantized Gauge Theory
By treating the bulk-quantized Yang-Mills theory as a constrained system we
obtain a consistent gauge-fixed BRST hamiltonian in the minimal sector. This
provides an independent derivation of the 5-d lagrangian bulk action. The
ground state is independent of the (anti)ghosts and is interpreted as the
solution of the Fokker-Planck equation, thus establishing a direct connection
to the Fokker-Planck hamiltonian. The vacuum state correlators are shown to be
in agreement with correlators in lagrangian 5-d formulation. It is verified
that the complete propagators remain parabolic in one-loop dimensional
regularization.Comment: 23 pages, AMS-LaTeX, 1 feynmf diagram, added 2 refs email addres
Characterisation of Crandell-Rees Feline Kidney (CRFK) cells as mesenchymal in phenotype
The Crandell-Rees Feline Kidney Cell (CRFK) is an immortalised cell line derived from the feline kidney that is utilised for the growth of certain vaccinal viruses. Confusion exists as to whether CRFK are epithelial or mesenchymal in phenotype. The aim of this study was to characterise CRFK cells via immunofluorescence, enzyme cytochemistry, western blotting, RT-qPCR for S100A4 and comparison to primary feline proximal tubular epithelial cells (FPTEC) and feline cortical fibroblasts (FCF). CRFK cells were of fusiform morphology and appeared similar to FCF. CRFK expressed the mesenchymal intermediate filament (IF) protein vimentin together with two cell adhesion molecules associated with feline fibroblasts (CD29 and CD44), and lacked expression of the epithelial IF cytokeratin, myogenic IF desmin and endothelial marker von Willebrand factor (vWF). In addition, CRFK did not demonstrate brush border enzyme activity typical of FPTEC. S100A4 gene expression, implicated in both neoplastic transformation and epithelial to mesenchymal transition, was highly upregulated in CRFK in comparison to the primary feline renal cells. CRFK appear phenotypically similar to fibroblasts, rather than tubular epithelial cells, and may have undergone neoplastic transformation or epithelial-to-mesenchymal transition after extensive passaging. This finding may have potential implications for future research utilising this cell line
ОЧЕРКИ ХИРУРГИЧЕСКОГО ЛЕЧЕНИЯ ГАСТРОЭЗОФАГЕАЛЬНОЙ РЕФЛЮКСНОЙ БОЛЕЗНИ
The most important historical stages of formation of scientific ideas of gastroesophageal reflux and its complications are presented in the article; the main milestones in the development of gastroesophageal reflux disease surgery are reflected.Рассмотрены наиболее важные исторические этапы формирования научных представлений о желудочно-пищеводном забросе и его осложнениях, отражены основные вехи развития хирургии гастроэзофагеальной рефлюксной болезни
Révoltes ou révolutions en Europe aux XIVe et XVe siècles (note critique)
Rutenburg Victor. Révoltes ou révolutions en Europe aux XIVe et XVe siècles (note critique). In: Annales. Économies, Sociétés, Civilisations. 27ᵉ année, N. 3, 1972. pp. 678-683
La vie et la mort des Ciompi de Sienne
Rutenburg Victor. La vie et la mort des Ciompi de Sienne. In: Annales. Economies, sociétés, civilisations. 20ᵉ année, N. 1, 1965. pp. 95-109
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