The influence of computer games development on the people's creativity

Creativity is regarded as one of the most important skills. It is essential in building a well-rounded personality and tolerant view of the world. Previous researchers and authors denied creativity as a static trait and convincingly acknowledged it as having vast opportunities to be improved. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/2607

Реформа з детінізації української економіки як комплекс різнопланових заходів (Ukrainian economy de-shadowing reform as a complex of difficult measures)

У статті обґрунтувано необхідність визнання і проведення реформи з детінізації економіки як пріоритетної. Визначено види тіньової економіки (офіційна, неофіційна, кримінальна) та основні причини її поширення. Окрес- лено рівень тінізації української економіки та намічено комплекс заходів щодо її детінізації. До нього додано як спеціальні заходи (з детінізації в основному кримінальної економіки), так і суміжні (інших реформ – управління державною власністю, антикорупційної, регуляторної, грошово-кредитної, податкової, митної служби, трудових відносин) – із детінізації здебільшого офіційної та неофіційної тіньової економіки. Зроблено висновок, що реалізація цих заходів сприятиме оздоровленню української економіки та підвищенню рівня економічної безпеки країни. (The article substantiates the necessity of recognizing and carrying out the economy de-shadowing reform as a priority. The types of shadow economy (offi cial, informal, criminal) and the main reasons for its spreading are determined. The level of the Ukrainian economy shadowing is outlined and a set of measures for its de-shadowing is planned. It includes both special measures (in terms of de-shadowing of mainly criminal economy) and adjacent ones (other reforms – state property management, anticorruption, regulatory, monetary, tax, customs, labor relations) – concerning the de-shadowing of mostly offi cial and informal shadow economy. It is concluded that the implementation of these measures will help to improve the Ukrainian economy and increase state’s economic security level.

Diagnostics of formedness of system of values of future economists in professional preparation process

The article presents the results of the diagnostics of the formation of the value sphere of future economists. The problem of diagnostics of the formedness of the axiosphere of future economic profile specialist is becoming increasingly relevant in the context of modern socio-economic and political conditions. The notion of "value" is considered in the article as a material or spiritual object, which matters for a particular person and causes a valuable relation to it. We define the valuable orientations of the person as a relatively stable orientation of the needs of an individual towards a certain group of values. The purpose of the research is to carry out the diagnostics of the formation of the value sphere of future specialists of the economic profile. Students studying economics on 1-3 courses participated in the study. The methods of conversations, interviews, questionnaires, and observations were used to diagnose the formedness of the value sphere of future specialists in the economic field in the process of carrying out their vocational training. The conducted research testifies to the formedness of certain social image of democratic and totalitarian values of future economic specialists. However, there is a need for further work on clarifying the essence of such socially important values as discipline and law-abidingness and the formation of proper awareness of them by future economists. The development of a methodology for formation of the value sphere of the future specialist in the economic profile is the prospects for further research.peer-reviewe

Melting temperature of graphene

We present an approach to the melting of graphene based on nucleation theory for a first order phase transition from the 2D solid to the 3D liquid via an intermediate quasi-2D liquid. The applicability of nucleation theory, supported by the results of systematic atomistic Monte Carlo simulations, provides an intrinsic definition of the melting temperature of graphene, $T_m$, and allows us to determine it. We find $T_m \simeq 4510$ K, about 250 K higher than that of graphite using the same interatomic interaction model. The found melting temperature is shown to be in good agreement with the asymptotic results of melting simulations for finite disks and ribbons of graphene. Our results strongly suggest that graphene is the most refractory of all known materials

Self-Consistent Screening Approximation for Flexible Membranes: Application to Graphene

Crystalline membranes at finite temperatures have an anomalous behavior of the bending rigidity that makes them more rigid in the long wavelength limit. This issue is particularly relevant for applications of graphene in nano- and micro-electromechanical systems. We calculate numerically the height-height correlation function $G(q)$ of crystalline two-dimensional membranes, determining the renormalized bending rigidity, in the range of wavevectors $q$ from $10^{-7}$ \AA$^{-1}$ till 10 \AA$^{-1}$ in the self-consistent screening approximation (SCSA). For parameters appropriate to graphene, the calculated correlation function agrees reasonably with the results of atomistic Monte Carlo simulations for this material within the range of $q$ from $10^{-2}$ \AA$^{-1}$ till 1 \AA$^{-1}$. In the limit $q\rightarrow 0$ our data for the exponent $\eta$ of the renormalized bending rigidity $\kappa_R(q)\propto q^{-\eta}$ is compatible with the previously known analytical results for the SCSA $\eta\simeq 0.82$. However, this limit appears to be reached only for $q<10^{-5}$ \AA$^{-1}$ whereas at intermediate $q$ the behavior of $G(q)$ cannot be described by a single exponent.Comment: 5 pages, 4 figure

Atomistic simulations of structural and thermodynamic properties of bilayer graphene

We study the structural and thermodynamic properties of bilayer graphene, a prototype two-layer membrane, by means of Monte Carlo simulations based on the empirical bond order potential LCBOPII. We present the temperature dependence of lattice parameter, bending rigidity and high temperature heat capacity as well as the correlation function of out-of-plane atomic displacements. The thermal expansion coefficient changes sign from negative to positive above $\approx 400$ K, which is lower than previously found for single layer graphene and close to the experimental value of bulk graphite. The bending rigidity is twice as large than for single layer graphene, making the out-of-plane fluctuations smaller. The crossover from correlated to uncorrelated out-of-plane fluctuations of the two carbon planes occurs for wavevectors shorter than $\approx 3$ nm$^{-1}$Comment: 6 pages, 7 figures