Optimizing LED lighting for space plant growth unit: Joint effects of photon flux density, red to white ratios and intermittent light pulses.

The aim of this work were to choose a quantitative optimality criterion for estimating the quality of plant LED lighting regimes inside space greenhouses and to construct regression models of crop productivity and the optimality criterion depending on the level of photosynthetic photon flux density (PPFD), the proportion of the red component in the light spectrum and the duration of the duty cycle (Chinese cabbage Brassica сhinensis L. as an example). The properties of the obtained models were described in the context of predicting crop dry weight and the optimality criterion behavior when varying plant lighting parameters.

SUBSTANTIATION OF OPTIMAL LIGHTING REGIMES FOR PLANTS IN SPACE GREENHOUSE <>.

A 3-factor experiment with 24-d vegetation of Brassica chinensis L. crops demonstrated the dependence of dry mass yield on lighting regimes provided by a lamp composed of white (color temperature 4000 K) and red (660 nm) LEDs (light-emitting diodes). Experimental data were used to build regressive dependences of plant dry mass and optimal light criterion (product of dry mass and photosynthesis efficiency) on 3 LEDs lamp parameters: photosynthetic photon flux density (PPFD), red and white PPFD ratio, and pulse period.

[Medical outcomes of emergency ejections from Russian aircrafts in 2003-2010].

Outcomes of 36 accidents with 37 aircrafts (one mid-air collision) in the period of 2003-2010 have been analyzed. Of 71 ejected crew members 14 pilots died (19.7%), 26 pilots (36.

[Scoliotic spinal deformity in pilot personnel from aviation physical examination's point of view].

According to results of performed examinations scoliotic spinal deformity in flight personnel has a low impact on professional health. This is proved by: oligosymptomatic course of disease - lack of complaints of pain, moderate pain, which is revealed only in case of loading tests and palpation; preservation of supporting and movement spinal function; lack of worsening of deformity during the flight service. At the same time in flight personnel suffering from scoliosis was registered a low tolerance to ergometri; robe, which point to insufficient muscle reserve of lower extremities, abdominals and dorsum.

Plastic efficiency of different implants used for repair of soft and bone tissue defects.

The results of clinical and experimental morphological studies of regenerates forming after replacement of large defects of the abdominal wall and tibia with implants from different materials (polytetrafluoroethylene, reperene, prolene, titanium, and titanium nickelide) are analyzed. Study of the regenerate histology and fibroarchitectonics has shown good prospects of mesh constructions from titanium nickelide for effective surgical repair of these defects. The use of this implant seems to be theoretically well-based and promising, particularly under conditions of suppurative infection and low individual reparative regenerative potential.