75 research outputs found
Biosynthesis of extracellular guanyl-specific ribonuclease by Bacillus circulans
Biosynthesis of extracellular alkaline guanyl-specific RNase by Bacillus circulans (RNase Bci) was studied. Synthesis of the enzyme by the culture started in the late exponential phase and was inhibited by inorganic phosphate and glucose, in contrast to the biosynthesis of its structural and functional homologue, RNase Ba (barnase) of B. amyloliquefaciens. It is suggested that differences in the regulation of the biosynthesis of RNases Bci and Ba are related to different structures of their gene promoters. © 1998 MAHK Hayka/Interperiodica Publishing
Biosynthesis of extracellular guanyl-specific ribonuclease by bacillus circulans
Biosynthesis of extracellular alkaline guanyl-specific RNase by Bacillus circulans (RNase Bei) was studied. Synthesis of the enzyme by the culture started in the late exponential phase and was inhibited by inorganic phosphate and glucose, in contrast to the biosynthesis of its structural and functional homologue, RNase Ba (barnase) of B. amyloliquefaciens. It is suggested that differences in the regulation of the biosynthesis of RNases Bei and Ba are related to different structures of their gene promoters
Proceedings of the third French-Ukrainian workshop on the instrumentation developments for HEP
The reports collected in these proceedings have been presented in the third
French-Ukrainian workshop on the instrumentation developments for high-energy
physics held at LAL, Orsay on October 15-16. The workshop was conducted in the
scope of the IDEATE International Associated Laboratory (LIA). Joint
developments between French and Ukrainian laboratories and universities as well
as new proposals have been discussed. The main topics of the papers presented
in the Proceedings are developments for accelerator and beam monitoring,
detector developments, joint developments for large-scale high-energy and
astroparticle physics projects, medical applications.Comment: 3rd French-Ukrainian workshop on the instrumentation developments for
High Energy Physics, October 15-16, 2015, LAL, Orsay, France, 94 page
On classical and quantum effects at scattering of fast charged particles in ultrathin crystal
9 pages, 5 figuresInternational audienceClassical and quantum properties of scattering of charged particles in ultrathin crystals are considered. A comparison is made of these two ways of study of scattering process. In the classical consideration we remark the appearance of sharp maxima that is referred to the manifestation of the rainbow scattering phenomenon and in quantum case we show the sharp maxima that arise from the interference of single electrons on numerous crystal planes, that can be expressed in the terms of reciprocal lattice vectors. We show that for some parameters quantum predictions substantially differ from the classical ones. Estimated is the influence of the beam divergence on the possibility of experimental observation of the studied effects
Accelerated method for determining the tetragonal nature of the crystal lattice of some alloys
Study of the velocities and modes of propagation of axisymmetric waves along an orthotropic hollow cylinder
Investigation of axisymmetric electroacoustic waves in a cylindrical sandwich shell by three-dimensional and applied theories
Effect of ultrasonic treatment on the physicomechanical properties of certain precision alloys
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