The operative findings in two very similar groups of patients after laminectomy for lumbar disc lesions were assessed. In one group of 55 patients mefrizamide radiculography was always performed before the operation but in the other historical confrol group of 65 patients Myodil myelography had only rarely been done. The results showed that the incidence of positive findings at operation was re...

BACKGROUND Glutamine synthetase (GS) is a crucial enzyme to the nitrogen cycle with great commercial and pharmaceutical value. Current inhibitors target the active site, affecting GS activity indiscriminately in all organisms. As the active site is located at the interface between two monomers, the protein-protein interface (PPI) of GSs gains a new role, by providing new targets for enzyme inhi...

We investigate intensity variations and energy deposition in five coronal loops in active region cores. These were selected for their strong variability in the AIA/SDO 94 Å intensity channel. We isolate the hot Fe xviii and Fe xxi components of the 94 Å and 131 Å by modeling and subtracting the “warm” contributions to the emission. HMI/SDO data allow us to focus on “inter-moss” regions in the l...

High and intermediate resolution observations of the blue and the Hα spectral regions of the symbiotic star AG Dra at quiescence and during an active phase in 1994 and 1995 were performed. Variations of profiles, fluxes and radial velocity data of a number of emission lines are investigated. The width (FWHM) of all of these lines was very large at times close to the 1994 light maximum. The emis...

Kinetic aspects of Landauer’s blow torch effect is investigated for a simple double well potential using the supersymmetric approach. We find that the presence of a hot region enhances the escape rate which increases as a function of its strength and width. We derive an approximate analytical expression for the escape rate as a function of the strength and width of the hot region and also as a ...

BACKGROUND Hot-spot based examination of immunohistochemically stained histological specimens is one of the most important procedures in pathomorphological practice. The development of image acquisition equipment and computational units allows for the automation of this process. Moreover, a lot of possible technical problems occur in everyday histological material, which increases the complexit...

AB S TRA C T. Radioactive particulate matter (identified as hot particles) is present in the effluent discharged by the British Nuclear Fuels Ltd (BNFL) uranium reprocessing plant at Sellafield, Cumbria, UK. There is very little information on the abundance or chemical and physical forms of solid matter in the effluent; even less is known of the significance of particulate debris in relation to...