The Stephenson - Kapitsa pendulum: Area of the Attraction of the Upper Positions of the Balance

Here we consider the behavior of a pendulum with a vibrating axis of suspension which differs from the classical one by the presence of an additional degree of freedom: the pendulum contains some mass, fixed on a spring, which can be displaced with respect to the main mass in two mutually perpendicular directions. Experimental investigations have been performed to determine the stable equilibrium positions of the pendulum. The results of the experiment were in good agreement with those of the numerical solution of the complete equations of motions of the system. Both of them were in good agreement with the rough analytical solution, obtained before by I.I. Blekhman and L. Sperling. It has been confirmed that the presence of the inner degree of freedom of the additional mass in the “radial” direction results in an essential widening of the range of attraction of the upper vertical quasi-equilibrium position of the pendulum

Technological development of enterprise: modern direction and strategies

Обґрунтовано необхідність технологічного розвитку як фактора конкурентних переваг підприємства. Охарактеризовано напрями і види стратегій технологічного розвитку, визначені завдання технологічного реінжинірингу на підприємстві.The necessity of technological development, as a factor of competitive advantages of enterprise was grounded. The directions and kinds of the technological development strategies were characterized, the tasks of technological reengineering at an enterprise were described

Plasmon Resonance of Silver Nanoparticles as a Method of Increasing Their Antibacterial Action

In this article, a series of silver-containing dressings are prepared by metal-vapor synthesis (MVS), and their antibacterial properties are investigated. The antibacterial activity of the dressings containing silver nanoparticles (AgNPs) against some Gram-positive, and Gram-negative microorganisms (Staphylococcus aureus, Staphylococcus haemolyticus, Pseudomonas aeruginosa, Klebsiella pneumoniae, Escherichia coli, Moraxella spp.) has been determined. Based on the plasmon resonance frequency of these nanoparticles, the frequency of laser irradiation of the dressing was chosen. The gauze bandage examined showed pronounced antibacterial properties, especially to Staphylococcus aureus strain. When 470 nm laser radiation, with a power of 5 mW, was applied for 5 min, 4 h after inoculating the Petri dish, and placing a bandage containing silver nanoparticles on it, the antibacterial effect of the latter significantly increased—both against Gram-positive and Gram-negative microorganisms. The structure and chemical composition of the silver-containing nanocomposite were studied by transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS) and extended X-ray absorption fine structure (EXAFS). The synthesized AgNPs demonstrate narrow and monomodal particle size distribution with an average size of 1.75 nm. Atoms of metal in Ag/bandage system are mainly in Ag0 state, and the oxidized atoms are in the form of Ag-Ag-O groups

Опыт лечения плантарных раневых и язвенных дефектов

The article presents the clinical case of successful treatment of a patient with heel plantar trophic ulcer. The results of plastics a neuropathy heel ulcer by medial plantar island flap are demonstrated.В статье представлено клиническое наблюдение успешного лечения пациентки с длительно незаживающей плантарной трофической язвой пяточной области. Продемонстрирован результат кожной пластики нейропатической язвы пяточной области островковым кожно-фасциальным медиальным подошвенным лоскутом

Oblast slobode bezbednosti i pravde u pravu Evropske unije

The area of freedom, security and justice was established by the EU constituent treaties and it was set as a special objective of the European integration. This area has undergone dynamic stages of institutional and normative development to become an integral part of the EU today. It would be difficult to imagine the existence of the EU without it. Historical development of the Union showed that protection of the basic citizens‘ values is not possible without clearly defined policies and joint cooperation of the Member States in the area of internal affairs and judiciary. Sensitivity of this cooperation stems from transferring national responsibilities to supranational level in the areas that are the core of every state‘s sovereignty. Use of legal force apparatus and criminal law jurisdiction have been until recently a national issue, and the Member States have been keeping this area from breakthrough of international or, in the case of EU, deeper mutual cooperation at any cost. The area of freedom, security and justice consists of three areas. The European area of freedom and free movement of people has been created by the Single Market. In addition to the advantages for the Union‘s citizens and citizens of third countries, the Single Market has enabled expansion and transfer of criminal activity in the area without internal borders. The European area of security entails police cooperation of the Member States on preserving security within the area of freedom and free movement of people. The cooperation in this area is the basis for efficient joint preventive and repressive action on fighting crime, especially serious crime with cross-border dimension. The European area of justice consists of elements of criminal law and civil law cooperation of the Member States. Joint definitions of criminal offences and sanctions, mutual recognition of verdicts and guaranteeing the rights of suspects or accused in a criminal procedure are crucial issues of the cooperation that has led gradually to supranational norms of the EU criminal law

Актуализация информации как сущность управления знаниями

The article deals with the concept of knowledge and information. This concept allows to create intellectual retrieval system and knowledge management system.В статье формулируется концепт «знания — актуализированная информация», определяется совокупность процессов преобразования информации в знания. Обоснованы параметры построения метрик знаниевого пространства, обозначены предпосылки построения базиса для систем управления знаниями и интеллектуальных поисковых информационных систем