Instrumentation for multistep excitation of lithium atoms to Rydberg states

We have developed a diode laser apparatus to excite Li from its ground 2S state, through 2P and 3S, to its Rydberg states with three cw diode lasers operating at λ = 671 nm, 813 nm, and 630-635 nm. A He-Ne laser at λ = 633 is sometimes used in place of the 635-nm diode laser for the last step. The output power of each of these lasers was ~1 mW. We describe our technique of locking the first two lasers on Li resonance lines by obtaining a fluorescent signal from the second decay (3S ? 2P) that is normally overpowered by a strong background of fluorescent light from the first decay (2P ? 2S). We used two balanced photodiodes to reject the strong fluorescent light without loss of collection efficiency. A rejection ratio as high as 100 has been obtained.     

Predictive Text Typing System for the Ukrainian Language

This paper investigates the intellectualization of text input using a system for accelerated input of texts into digital devices with a view to constructing a model of a corpus of the Ukrainian spoken language and a text typing system based on this model. Such a system uses a smaller number of commands to input letters and predicts variants of words on the basis of the corpus of words and word combinations for communication. It is experimentally shown that the input of texts using four and six command keys is rather efficient for the constructed corpus.     

A simple robust control for global asymptotic position stabilization of underactuated surface vessels

Global asymptotic stabilization of underactuated surface vessels is generally achieved only by designing complicated controllers. This paper proposes a very simple control law that globally asymptotically stabilizes the position of underactuated surface vessel to a desired constant location and its velocities to zero. The proposed controller is independent of velocity signals and is robust to model parameters. It neither includes an observer nor an adaptive/sliding‐mode law. Controller development and stability analysis rely on a novel Lyapunov function and LaSalle's theorem. Furthermore, by extending the proposed control strategy, a saturated control law is also obtained ensuring the semiglobal asymptotic stability of position error system. Effectiveness of the proposed control schemes is demonstrated by simulation examples. Copyright © 2017 John Wiley & Sons, Ltd.     

Construction and identification of elements of sign communication

This article proposes mathematical models and an information technology for constructing movements of a virtual person and reproducing a sign language based on a set of gesture units and transitions between them. The implementation of movement reproduction in a virtual model allows obtaining a real-time animation of sign information. The efficiency of the proposed approach is illustrated by an example of modelling and identifying dactyl information.     

Game Models for the Control of the Main Body Functional Systems and their Analysis. II

The authors propose and validate the mathematical models for the human body adaptation mechanisms to oxygen lack in highland and strenuous physical activity. The computer analysis of joint operation of the respiratory, circulatory, and heat exchange functional systems and immune response to viral infection is carried out to reveal the nature of intersystem mechanisms of the interaction of functional systems of the body under extreme environmental conditions.     

Experience of nutritional support in late period of traumatic disease of wounded patients

There are no standards of nutritional support of wounded patients in different periods of disease. Influence of supplementation with Nutrition on dynamic of anthropometric indexes, some biochemical and laboratory parameters in wounded malnourished patients in the last period of disease was examined. The results of investigation indicated that supplementation with Nutrizon increased all tianthropometric indexes, normalized albumin blood level, nitrogen balance, decreased nitrogen of urine.     

Medical-biological evaluation of genetically-modified sugar beet line 77 (chemical composition and toxicologico-biochemical studies)

The rats were fed with the Genetically Modified Sugar Beet line 77 (Monsanto Ko, USA) 10 g/rat/day for 1 month. Their blood, urea and liver were investigated to measure total protein and glucose levels, aminotransferase and alkaline phosphatase activities, pH, creatinine level as well as hepatic enzyme activity of the I and II phases of xenobiotic metabolism and whole and non-sedimentated lysosomal enzyme activities and activity of antioxidant system.     

Effectiveness of dietary non-starch polysaccharides in experimental toxic hepatitis

The efficiency of some polysaccharides was investigated in mice with an experimental toxic hepatitis. Hepatitis was induced by the oral administration of 10% solution CCl4 in olive oil at a dosage of 3 ml/kg body weight every day during 7 days. After that tested substances were administrated every day 30-40 min before a feeding at a dosage of 150 mg/kg body weight during 14-21 days. Results showed that a calcium alginate, two low-methoxyl pectins (one with the degree of esterification about 50% and other with the degree of esterification less 5%), fucoidan, and chitozan, but not lambda-carrageenan and kappa-carrageenan, have beneficial affects on liver total lipid, glycogen, malondialdehyde, and diene conjugates as well as on blood total lipid and alanine aminotransferase activity in animals with experimental toxic hepatitis.     

The adaptation characteristics of infants with a perinatal lesion of the central nervous system in relation to the nature and schedule of their feeding

We studied in dynamics 72 babies with cerebral perinatal disturbances aged up to 3 months (32 boys and 40 girls) in City Maternity Homes No 1 and No 4 and in New-Born Pathology Department of City Infant Hospital No 1 in Krasnoyarsk. All babies were divided into four groups according to the character and schedule of feeding: I-st group--babies, fed with mammary milk at the first 2 hours and being fed more than 10 times during the day with obligatory night feeding; II-nd group--babies, fed with mammary milk at the first 2 hours and being fed 6 times during the day usually with night break; III-rd group--babies, fed with mammary milk in 6-8 hours after birth and being fed more than 10 times during the day with obligatory night feeding; IV-th group--babies, fed with mammary milk in 6-8 hours after birth and being fed 6 times during the day with usual night break. We have marked faster tempo of normalization in indices of neurological status and physical development in groups of infants, fed with mammary milk at the first 2 hours and being fed more that 10 times during a day with obligatory night feeding as compared to babies, which were fed according to common schedule. We didn't find the dependence from the stage of perinatal pathology of nerve system. Frequency of functional disturbances in cardio rhythm, malfunctions of gastrointestinal tract, allergy diseases and iron-deficiency anemia in babies, fed with special food in early age (not mammary milk) is evidently higher as compared to babies, fed with mammary milk only. We received the results of examination in dynamics which prove, that mammary milk creates favorable background for the development of adaptation processes in baby organism, which allows faster compensation of residual factors, connected with perinatal disturbances of nerve system.