Analysis of the influence of the import substitution on the competitiveness of the agricultural production in Belgorod region

Анализ влияния импортозамещения продуктов питания на конкурентоспособность сельскохозяйственного производства в Белгородской област

МЕХАНІЗАЦІЯ ЗЕРНОВОГО ВИРОБНИЦТВА У ГОСПОДАРСТВАХ ПІВДНЯ УКРАЇНИ: СПЕЦИФІКА ПЕРЕБІГУ ТА ЧИННИКИ ВПЛИВУ (1860-ті — 1910-ті рр.)

У статті розкривається еволюція сільськогосподарської техніки та її розповсюдження у землеробських господарствах Півдня України післяре- форменої доби. З’ясовано чинники, що впливали на напрями та рівень ме- ханізації зернового виробництва. Здійснено видову класифікацію землероб- ських знарядь праці, які застосовували південноукраїнські господарі. Обґрунтовується теза, що формування в регіоні потужної розгалуженої мережі підприємств із виробництва сільськогосподарських машин значною мірою означило темпи та характер механізації землеробства. Ключові слова: землеробське знаряддя праці, механізація, сільськогосподарське машинобудування, південноукраїнська губернія, зернове вироб- ництво, підприємництво

Results and prospects of collaboration of Scientific Center of Reconstructive and Restorative Surgery SB RAMS and A.E. Favorsky Irkutsk Institute of Chemistry SB RAS

The article presents main results of collective researches of Scientific Center of Reconstructive and Restorative Surgery SB RAMS and A.E. Favorsky Irkutsk Institute of Chemistry SB RAS. Introduction of obtained results in clinical practice produces good effect and allows to hope for further collaboration

Dynamics of the Free Surface of a Conducting Liquid in a Near-Critical Electric Field

Near-critical behavior of the free surface of an ideally conducting liquid in an external electric field is considered. Based on an analysis of three-wave processes using the method of integral estimations, sufficient criteria for hard instability of a planar surface are formulated. It is shown that the higher-order nonlinearities do not saturate the instability, for which reason the growth of disturbances has an explosive character.Comment: 19 page

Role of state in formation and development of tourist cluster

Recently, the sphere of tourism has been paid a lot of attention from state structures and private sector. It is obvious that the increase of competitiveness of existing tourist regions and formation of new ones require the use of cluster approach. Successful realization of this approach requires direct participation of the state. The article views the current state of the tourism sphere in the Russian Federation, studies the topicality of cluster approach and tools of state policy in this issue, and determines the problems in formation and development of tourist cluster

Increased motor cortex excitability during motor imagery in brain-computer interface trained subjects

Background: Motor imagery (MI) is the mental performance of movement without muscle activity. It is generally accepted that MI and motor performance have similar physiological mechanisms. Purpose: To investigate the activity and excitability of cortical motor areas during MI in subjects who were previously trained with an MI-based brain-computer interface (BCI). Subjects and Methods: Eleven healthy volunteers without neurological impairments (mean age, 36 years; range: 24–68 years) were either trained with an MI-based BCI (BCI-trained, n = 5) or received no BCI training (n = 6, controls). Subjects imagined grasping in a blocked paradigm task with alternating rest and task periods. For evaluating the activity and excitability of cortical motor areas we used functional MRI and navigated transcranial magnetic stimulation (nTMS). Results: fMRI revealed activation in Brodmann areas 3 and 6, the cerebellum, and the thalamus during MI in all subjects. The primary motor cortex was activated only in BCI-trained subjects. The associative zones of activation were larger in non-trained subjects. During MI, motor evoked potentials recorded from two of the three targeted muscles were significantly higher only in BCI-trained subjects. The motor threshold decreased (median = 17%) during MI, which was also observed only in BCI-trained subjects. Conclusion: Previous BCI training increased motor cortex excitability during MI. These data may help to improve BCI applications, including rehabilitation of patients with cerebral palsy.Web of Science7art. no. 0016