QCD condensates and hadron parameters in nuclear matter: self-consistent treatment, sum rules and all that

We review various approaches to the calculation of QCD condensates and of the nucleon characteristics in nuclear matter. We show the importance of their self-consistent treatment. The first steps in such treatment appeared to be very instructive. It is shown that the alleged pion condensation anyway can not take place earlier than the restoration of the chiral symmetry. We demonstrate how the finite density QCD sum rules for nucleons work and advocate their possible role in providing an additional bridge between the condensate and hadron physics.Comment: 67 pages, LaTeX, 15 figures, epsfig.sty; to be published in "Progress in Particle and Nuclear Physics", vol.47, is.

Modelling an experimental systemic pseudomonas infection process

This article presents the results of an experimental model of a systemic pseudomonas aeruginosa infection. This model can be used to develop therapeutic measures to suppress an infectious disease caused by antibiotic-resistant strains of Pseudomonas aeruginosa. For this purpose, a dry lyophilised culture (strain name: Pseudomonas Aeruginosa No. 453, strain number 190158, obtained from the Vishnevsky Institute of Surgery. Pseudomonas aeruginosa culture was pre-cultured in test tubes with meat-peptone broth (MPB), after 30 min using a sterile pipette and 0.2 ml of sterile pipette was transferred to test tubes with meat-peptone agar (cetrimide agar) and cultured in anaerobic medium at 37±2 °C for 24 h at the thermostat. The Pseudomonas aeruginosa culture is resuspended by washing off the surface of the culture medium with 0.85% saline. In a sterile area, the culture is pipetted with a Pasteur pipette. The concentration of microbial cells is adjusted to the Tarasevich turbidity standard in a sterile test tube. Animals are held head down so that the viscera of the abdomen descend to the diaphragm. The injection is made in the lower third, to the left of the white line of the abdomen. The injection site is disinfected, a skin fold is taken and a needle is inserted into it, turned at right angles and the abdominal wall is punctured with a quick thrust. The needle is blunted beforehand to prevent damage to the intestinal loops. The volume of culture injected into rabbits and the clinical signs of infection depend on the concentration of microbial cells detected by the Tarasevich turbidity standard and the appropriate group. Conditions, selected in it, allow to create quickly the necessary concentration of microbial cells in abdominal cavity of laboratory animals, promoting peritonitis, and the criteria of performance are technically simple

Testing of the sensing element of a capacitive micromechanical accelerometer

Abstract Sensing element is one of the main parts of a micromechanical accelerometer. It determines a lot of parameters of the whole device. Its design flow is a complex process including the steps from the analysis of technical and technological requirements to testing the manufactured devices. Testing is one of the most important steps because it allows not only getting the final characteristics of the chip, but also verifying and specifying the mathematical model of the sensing element for future designs. The paper presents the results of micromechanical accelerometer sensing element testing. Special attention is given to the steps of wafer-level testing and testing with an integrated circuit in the accelerometer.</jats:p

Modelling an experimental systemic pseudomonas infection process

This article presents the results of an experimental model of a systemic pseudomonas aeruginosa infection. This model can be used to develop therapeutic measures to suppress an infectious disease caused by antibiotic-resistant strains of Pseudomonas aeruginosa. For this purpose, a dry lyophilised culture (strain name: Pseudomonas Aeruginosa No. 453, strain number 190158, obtained from the Vishnevsky Institute of Surgery. Pseudomonas aeruginosa culture was pre-cultured in test tubes with meat-peptone broth (MPB), after 30 min using a sterile pipette and 0.2 ml of sterile pipette was transferred to test tubes with meat-peptone agar (cetrimide agar) and cultured in anaerobic medium at 37±2 °C for 24 h at the thermostat. The Pseudomonas aeruginosa culture is resuspended by washing off the surface of the culture medium with 0.85% saline. In a sterile area, the culture is pipetted with a Pasteur pipette. The concentration of microbial cells is adjusted to the Tarasevich turbidity standard in a sterile test tube. Animals are held head down so that the viscera of the abdomen descend to the diaphragm. The injection is made in the lower third, to the left of the white line of the abdomen. The injection site is disinfected, a skin fold is taken and a needle is inserted into it, turned at right angles and the abdominal wall is punctured with a quick thrust. The needle is blunted beforehand to prevent damage to the intestinal loops. The volume of culture injected into rabbits and the clinical signs of infection depend on the concentration of microbial cells detected by the Tarasevich turbidity standard and the appropriate group. Conditions, selected in it, allow to create quickly the necessary concentration of microbial cells in abdominal cavity of laboratory animals, promoting peritonitis, and the criteria of performance are technically simple

Testing of the sensing element of a capacitive micromechanical accelerometer

Sensing element is one of the main parts of a micromechanical accelerometer. It determines a lot of parameters of the whole device. Its design flow is a complex process including the steps from the analysis of technical and technological requirements to testing the manufactured devices. Testing is one of the most important steps because it allows not only getting the final characteristics of the chip, but also verifying and specifying the mathematical model of the sensing element for future designs. The paper presents the results of micromechanical accelerometer sensing element testing. Special attention is given to the steps of wafer-level testing and testing with an integrated circuit in the accelerometer

The Chemical and Structural Peculiarities of the Kazan Khanate Cast-Iron Cookware in the 14th–15th Centuries

The article presents the results of the examination of the fragments of cast-iron cauldrons found in the territory of the Kazan Kremlin, which date back to the period of the Kazan Khanate in the 14th–15th centuries. The examination of the samples of cast-iron cookware was carried out using the methods of scanning electron microscopy and optical emission spectroscopy. We analyzed the structure and the micro-trace composition of the samples of Kazan cast-iron and undertook its comparative study with the samples of Bolgar and Juketaw cast-iron cookware. We found out that the fragments of cast-iron articles from the Kazan Kremlin are characterized by a wide variety of technologies and chemical composition, in the sample there are both pro-Bolgar samples and those that are chemically and structurally different from it. The correlation analysis of the trace elements of Bolgar, Kazan and Juketaw cast-iron allowed to establish alleged markers of the iron-bearing ore in the territory of the Volga region, which together with other Golden Horde samples may help to understand the phenomenon of the extension of iron foundry tradition and its artefacts in the region. The study also provided convincing evidence of the existence of a link between iron foundry traditions in the Middle Volga region during the two-century period.</jats:p