NUTRITION FOR CORRECTING METABOLISM DISORDERS OF THE JOINT-LIGAMENT SYSTEM IN PHYSICALLY ACTIVE PEOPLE

Aim. The article deals with developing and assessing the efficiency of a complex nutritional support program for the joint-ligament system in athletes and physically active people. Materials and methods. The clinical evidence of biologically active substance (BAS) efficiency and functional orientation was obtained from the representative group of people with knee-joint osteoarthrosis. The main group of participants received a BAS complex with synergistic properties in terms of metabolism correction during osteoarthrosis: BAS 1 – 2 pills, BAS 2 – 1 capsule (2 times per day, 12 weeks), and BAS 3 – 1 capsule (2 times per day, 8 weeks). Nonsteroidal anti-inflammatory drugs were also prescribed to participants from the main and control groups. We used the general and special methods for assessing the quality and functional properties of specialized products. Knee joints were studied by using the Lequesne index (scores) characterizing pain syndrome, maximal distance, and daily movement activity. The intensity of pain syndrome was assessed with the visual analog scale (VAS, in mm). Results. We provided a scientific justification for the qualitative and quantitative content of BAS recipes for complex nutritional support of the joint-ligament system: BAS 1 – chondroprotective orientation; BAS 2 – an optimal source of minerals and vitamins; BAS 3 – polyunsaturated fatty acids. The results obtained revealed that specialized products improve the movement activity of participants with osteoarthrosis and significantly decrease pain syndrome (36 %). Apart from a chondroprotective effect such nutrition provides an anti-inflammatory effect and allows decreasing the intake of Nonsteroidal anti-inflammatory drugs in the absence of side effects. We revealed an insignificant number of disease recurrence – 6.7% (in the control group – 36.5 %) and established the mechanisms of such an influence. Conclusion. The application of biologically active complexes could serve as a reliable means of preventing and treating the diseases of the joint-ligament system, providing physical performance, and preserving health in athletes and physically active people.

Final state hadronic rescattering with UrQMD

In this talk we discuss the effects of the hadronic rescattering on final state observables in high energy nuclear collisions. We do so by employing the UrQMD transport model for a realistic description of the hadronic decoupling process. The rescattering of hadrons modifies every hadronic bulk observable. For example apparent multiplicity of resonances is suppressed as compared to a chemical equilibrium freeze-out model. Stable and unstable particles change their momentum distribution by more than 30% through rescattering. The hadronic rescattering also leads to a substantial decorrelation of the conserved charge distributions. These findings show that it is all but trivial to conclude from the final state observables on the properties of the system at an earlier time where it may have been in or close to local equilibrium.

A new approach to time-dependent transport through an interacting quantum dot within the Keldysh formalism

The time-dependent transport through a nanoscale device consisting of a single spin-degenerate orbital with on-site Coulomb interaction, coupled to two leads, is investigated. Various gate and bias voltage time dependences are considered. The key and new point lies in the proposed way to avoid the difficulties of the usual heavy computation when dealing with two-time Green's functions within the Keldysh formalism. The time-dependent retarded dot Green's functions are evaluated, in an efficient manner within a non-canonical Hubbard I approximation. Calculations of the time-dependent current are then presented in the wide-band limit for different parameter sets. A comparison between the method and the Hartree-Fock approximation is performed as well. It is shown that the latter cannot account reliably for dynamical aspects of transport phenomena.

Mode-locking optimization with a real-time feedback system in a Nd:yttrium lithium fluoride laser cavity

We present a control system, which allows an automatic optimization of the pulse train stability in a mode-locked laser cavity. In order to obtain real-time corrections, we chose a closed loop approach. The control variable is the cavity length, mechanically adjusted by gear system acting on the rear cavity mirror, and the controlled variable is the envelope modulation of the mode-locked pulse train. Such automatic control system maintains the amplitude of the mode-locking pulse train stable within a few percent rms during the working time of the laser. Full implementation of the system on an Nd:yttrium lithium fluoride actively mode-locked laser is presented.

Hugoniot data of plastic foams obtained from laser-driven shocks

In this paper we present Hugoniot data for plastic foams obtained with laser-driven shocks. Relative equation-of-state data for foams were obtained using Al as a reference material. The diagnostics consisted in the detection of shock breakout from double layer Al/foam targets. The foams [poly(4-methyl-1-pentene) with density 130 > rho > 60 mg/cm3] were produced at the Institute of Laser Engineering of Osaka University. The experiment was performed using the Prague PALS iodine laser working at 0.44 microm wavelength and irradiances up to a few 10(14) W/cm2. Pressures as high as 3.6 Mbar (previously unreached for such low-density materials) where generated in the foams. Samples with four different values of initial density were used, in order to explore a wider region of the phase diagram. Shock acceleration when the shock crosses the Al/foam interface was also measured.