Physics Beyond SM at RHIC with Polarized Protons

The capabilities of RHIC with polarized protons to test the Lorentz structure of electroweak interactions and also the properties of MSSM Higgs, should it be discovered, are discussed.Comment: Report to the 14th International Symposium on Spin Physics, October 16-21, 2000, RCNP, Osaka University, Osaka, Japan. To be published in the Proceedings, 6 page

On Critical Relative Distance of DNA Codes for Additive Stem Similarity

We consider DNA codes based on the nearest-neighbor (stem) similarity model which adequately reflects the "hybridization potential" of two DNA sequences. Our aim is to present a survey of bounds on the rate of DNA codes with respect to a thermodynamically motivated similarity measure called an additive stem similarity. These results yield a method to analyze and compare known samples of the nearest neighbor "thermodynamic weights" associated to stacked pairs that occurred in DNA secondary structures.Comment: 5 or 6 pages (compiler-dependable), 0 figures, submitted to 2010 IEEE International Symposium on Information Theory (ISIT 2010), uses IEEEtran.cl

Random Coding Bounds for DNA Codes Based on Fibonacci Ensembles of DNA Sequences

We consider DNA codes based on the concept of a weighted 2-stem similarity measure which reflects the ”hybridization potential” of two DNA sequences. A random coding bound on the rate of DNA codes with respect to a thermodynamic motivated similarity measure is proved. Ensembles of DNA strands whose sequence composition is restricted in a manner similar to the restrictions in binary Fibonacci sequences are introduced to obtain the bound

Comparison of the blood parameters with the chemical composition of the muscle tissue of meat-and-egg chicken

Basic blood and muscle tissue parameters have been analyzed in crossbred male Russian White and Cornish hens (♂, RW x CORN, n=95, slaughtered at 63 days of age). According to BW at slaughter, males (n=95) were divided into 3 groups (group 1–1,000–1,799 g, n=31; group 2–1,800–2,099 g, n=28; group 3–2,100–2,650 g, n=36). It has been found that with an increase in the live weight at slaughter, the ratio of albumin to globulin (p=0.038), aspartate aminotransferase (p=0.003) increased in the serum of birds; the levels of globulins (p=0.05), glucose (p=0.02), Ca (p=0.006), Mg (p=0.05) decreased. With increasing BW, the crude protein content in thigh muscle decreased (p=0.019) against a trend towards increasing moisture content in thigh meat (p=0.058). Comparative assessment of biochemical blood parameters of nitrogen, carbohydrate-lipid, mineral metabolism, antioxidant protection parameters, some clinical blood parameters (hematocrit, erythrocytes and hemoglobin) and chemical composition of the breast and thigh muscle tissue has been carried out. The analysis (Pearson correlation coefficients) has revealed patterns between the concentration of some blood metabolites and the composition of muscle tissue in males. Thus, the accumulation and analysis of data on resource genetic populations is of interest for science and practice in order to establish relationships between blood parameters and the quality of chicken products, as well as to identify biomarkers for predicting poultry productivity in vivo

Superconductivity in silicon nanostructures

We present the findings of the superconductivity observed in the silicon nanostructures prepared by short time diffusion of boron on the n-type Si(100) surface. These Si-based nanostructures represent the p-type ultra-narrow self-assembled silicon quantum wells, 2nm, confined by the delta - barriers heavily doped with boron, 3nm. The EPR and the thermo-emf studies show that the delta - barriers appear to consist of the trigonal dipole centres, which are caused by the negative-U reconstruction of the shallow boron acceptors. Using the CV and thermo-emf techniques, the transport of two-dimensional holes inside SQW is demonstrated to be accompanied by single-hole tunneling through these negative-U centres that results in the superconductivity of the delta - barriers. The values of the correlation gaps obtained from these measurements are in a good agreement with the data derived from the temperature and magnetic field dependencies of the magnetic susceptibility, which reveal a strong diamagnetism and additionally identify the superconductor gap value.Comment: 4 pages, 6 figures, presented at the 4th International Conference on Vortex Matter in Superconductors, Crete, Greece, September 3-9, 200

Suppression of Superconductivity in Mesoscopic Superconductors

We propose a new boundary-driven phase transition associated with vortex nucleation in mesoscopic superconductors (of size of the order of, or larger than, the penetration depth). We derive the rescaling equations and we show that boundary effects associated with vortex nucleation lowers the conventional transition temperature in mesoscopic superconductors by an amount which is a function of the size of the superconductor. This result explains recent experiments in small superconductors where it was found that the transition temperature depends on the size of the system and is lower than the critical Berezinsk\u{i}-Kosterlitz-Thouless temperature.Comment: To appear in Phys. Rev. Lett. Vol. 86 (15 Jan. 2001

Molecular Structure of Pyrazinamide: A Critical Assessment of Modern Gas Electron Diffraction Data from Three Laboratories

Otlyotov AA, Girichev, Georgiy V, Rykov AN, Glodde T, Vishnevskiy Y. Molecular Structure of Pyrazinamide: A Critical Assessment of Modern Gas Electron Diffraction Data from Three Laboratories. JOURNAL OF PHYSICAL CHEMISTRY A. 2020;124(25):5204-5211.Accuracy and precision of molecular parameters determined by modern gas electron diffraction have been investigated. Diffraction patterns of gaseous pyrazinamide have been measured independently in three laboratories, in Bielefeld (Germany), Ivanovo (Russia), and Moscow (Russia). All data sets have been analyzed in equal manner using a highly controlled background elimination procedure and flexible restraints in molecular structure refinement. In detailed examination and comparison of the obtained results we have determined the average experimental precision of 0.004 angstrom for bond lengths and 0.2 degrees for angles. The corresponding average deviations of the refined parameters from the ae-CCSD(T)/cc-pwCVTZ theoretical values were 0.003 angstrom and 0.2 degrees. The average precision for refined amplitudes of interatomic vibrations was determined to be 0.005 angstrom. It is recommended to take into account these values in calculations of total errors for refined parameters of other molecules with comparable complexity