Effect of the RNase from bacillus intermedium on the trophic organization of the mitotic cycle of candida utilis

The effect of the RNase from Bacillus intermedius on the growth and trophic cycle of Candida utilis was studied. The RNase at concentrations of 0.001-0.01 μg/ml stimulated yeast growth by 30-40% as compared to the control, reduced the mitotic cycle of the yeast by shortening its Gl phase, and decreased the number of exotrophic cells in the Gl phase to a minimum. It was suggested that RNase is involved in the regulation of the transition of cells from the exo- to endotrophic state

Effect of the RNase from bacillus intermedius on the trophic organization of the mitotic cycle of candida utilis

The effect of the RNase from Bacillus intermedius on the growth and trophic cycle of Candida utilis was studied. RNase at concentrations of 0.001-0.01 Hg/ml stimulated yeast growth by 30-40% as compared to the control, reduced the mitotic cycle of the yeast by shortening its G1 phase, and decreased the number of exotrophic cells in the G1 phase to a minimum. It is suggested that RNase is involved in the regulation of the transition of cells from the exo- to endotrophic state. © 1999 MAHK "Hayka/Interperiodica"

Experimental demonstration of bistable phase locking in a photorefractive oscillator

We report experimental evidence of bistable phase locking in nonlinear optics, in particular, in a photorefractive oscillator emitting in few transverse modes. Bistable phase locking is a recently proposed method for converting a laserlike system, which is phase invariant, into a phase-bistable one by injecting a suitable spatially modulated monochromatic beam, resonant with the laser emission, into the optical cavity. We experimentally demonstrate that the emission on the fundamental TEM00 mode becomes phase bistable by injection of a beam with the shape of the TEM10 mode with appropriate frequency, in accordance with recent theoretical predictions [K. Staliunas et al., Phys. Rev. A 80, 025801 (2009)]. The experimental observations are supported by an analytical study of a few-transverse-mode photorefractive oscillator model.Postprint (published version

The local crystallization in nanoscale diamond-like carbon films during annealing

The local crystallization during annealing at 600° C in nanoscale diamond-like carbon coatings films grown by pulsed vacuum-arc deposition method was observed using modern techniques of high-resolution transmission electron microscopy. The crystallites formed by annealing have a face-centred cubic crystal structure and grow in the direction [011] as a normal to the film surface. The number and size of the crystallites depend on the initial values of the intrinsic stresses before annealing, which in turn depend on the conditions of film growth. The sizes of crystallites are 10 nm for films with initial compressive stresses of 3 GPa and 17 nm for films with initial compres- sive stresses of 12 GPa. Areas of local crystallization arising during annealing have a structure dif- ferent from the graphit

Concentration dependence of the effect of bacillus intermedium ribonuclease on the yeast saccharomyces cerevisiae

-Bacillus intermedius RNase added at a low concentration (0.001 |ig/ml) stimulated yeast growth, while a high RNase concentration (1500 Jig/ml) was inhibitory to yeast growth. The inhibitory effect of RNase was transient and correlated with the increase in the trehalose pool of yeast cells. The number of unbudded cells in the yeast population tended to decrease under the action of low concentrations of bacillar RNase and to increase under the action of high concentrations of this enzyme

On the maximal sum of exponents of runs in a string

A run is an inclusion maximal occurrence in a string (as a subinterval) of a repetition $v$ with a period $p$ such that $2p \le |v|$. The exponent of a run is defined as $|v|/p$ and is $\ge 2$. We show new bounds on the maximal sum of exponents of runs in a string of length $n$. Our upper bound of $4.1n$ is better than the best previously known proven bound of $5.6n$ by Crochemore & Ilie (2008). The lower bound of $2.035n$, obtained using a family of binary words, contradicts the conjecture of Kolpakov & Kucherov (1999) that the maximal sum of exponents of runs in a string of length $n$ is smaller than $2n$Comment: 7 pages, 1 figur

Effect of Bacillus intermedius ribonuclease on properties of the yeast Saccharomyces cerevisiae | Vliianie ribonukleazy Bacillus intermedius na svoistva drozhzhei Saccharomyces cerevisiae.

Effects of Bacillus intermedius ribonuclease on physiological, biochemical, and consumer properties of baker's yeast Saccharomyces cerevisiae were studied. This enzyme improved the yeast raising strength and increased the cell tolerance to various adverse factors. The antistress effect of RNase correlated with an earlier start of the stationary growth phase and increased trehalose pool

Alteration of some biological properties of Lactobacillus under the action of RNAse

The influence of RNAse from Bacillus intermedius on the growth of the industrial strain Lactobacillus plantarum 8R-A3 was studied. It was shown that the stimulating effect of the enzyme depended on its dose and manifested itself in decreasing the growth lag phase. At the same time the growth stimulating dose of RNAse increased the Lactobacillus adhesion to the epithelial cells and promoted secretion of proteinases from Lactobacillus to the culture medium. The possible use of RNAse as a stimulant of the growth of industrial strains was demonstrated which is advantageous for colonization of the biological surfaces

Effects of Bacillus intermedius ribonuclease on properties of Saccharomyces cerevisiae

Effects of Bacillus intermedius ribonuclease on physiological, biochemical, and consumer properties of baker's yeast Saccharomyces cerevisiae were studied. This enzyme improved the yeast raising strength and increased the cell tolerance to various adverse factors. The antistress effect of RNase correlated with an earlier start of the stationary growth phase and increased trehalose pool

Effects of Bacillus intermedius ribonuclease on the properties of Saccharomyces cerevisiae

Effects of Bacillus intermedius ribonuclease on the physiological, biochemical, and consumer properties of baker's yeast Saccharomyces cerevisiae were studied. This enzyme improved the yeast raising strength and increased the cell tolerance to various adverse factors. The antistress effect of RNase correlated with an earlier start of the stationary growth phase and increased trehalose pool