Elementary-school age as a sensitive period in relation to development of the creative thinking: theoretical aspects

Analysis of scientific position about the concept of "sensitivity" is conducted, the features of primary school age as a sensitive period for the development of creative thinking of children are found out in the article. The difference between concepts  "sensitive age"  and "sensitive period" is showed and key attributes of creative thinking in younger scholars are stressed.Key words: creative thinking, development, personality, sensitivity, primary school age.У статті здійснено аналіз наукових позицій щодо дифініції поняття «сензитивність», розкрито особливості  молодшого шкільного віку як сензитивного періоду щодо розвитку творчого мислення дітей. Акцентується увага на розведенні понять «сензитивний вік» та «сензитивний період», висвітленні ключових  ознак  творчого мислення у молодших школярів.Ключові слова: творче мислення, розвиток, особистість, сензитивність, молодший шкільний вік

New Developments of EPOS 2

Since 2006, EPOS hadronic interaction model is being used for very high energy cosmic ray analysis. Designed for minimum bias particle physics and used for having a precise description of SPS and RHIC heavy ion collisions, EPOS brought more detailed description of hadronic interactions in air shower development. Thanks to this model it was possible to understand why there were less muons in air shower simulations than observed in real data. With the start of the LHC era, a better description of hard processes and collective effects is needed to deeply understand the incoming data. We will describe the basic physics in EPOS and the new developments and constraints which are taken into account in EPOS 2.Comment: Contributed presentation to the XVI International Symposium on Very High Energy Cosmic Ray Interactions (ISVHECRI 2010), Batavia, IL, USA (28 June 2 July 2010). 4 pages, 6 figure

Jets, Bulk Matter, and their Interaction in Heavy Ion Collisions at Several TeV

We discuss a theoretical scheme that accounts for bulk matter, jets, and the interaction between the two. The aim is a complete description of particle production at all transverse momentum ($p_{t}$) scales. In this picture, the hard initial scatterings result in mainly longitudinal flux tubes, with transversely moving pieces carrying the $p_{t}$ of the partons from hard scatterings. These flux tubes constitute eventually both bulk matter (which thermalizes and flows) and jets. We introduce a criterion based on parton energy loss to decide whether a given string segment contributes to the bulk or leaves the matter to end up as a jet of hadrons. Essentially low $p_{t}$ segments from inside the volume will constitute the bulk, high $p_{t}$ segments (or segments very close to the surface) contribute to the jets. The latter ones appear after the usual flux tube breaking via q-qbar production (Schwinger mechanism). Interesting is the transition region: Intermediate $p_{t}$ segments produced inside the matter close to the surface but having enough energy to escape, are supposed to pick up q-qbar pairs from the thermal matter rather than creating them via the Schwinger mechanism. This represents a communication between jets and the flowing bulk matter (fluid-jet interaction). Also very important is the interaction between jet hadrons and the soft hadrons from the fluid freeze-out. We employ the new picture to investigate Pb-Pb collisions at 2.76 TeV. We discuss the centrality and $p_{t}$ dependence of particle production and long range dihadron correlations at small and large $p_{t}$

Тенденции развития мотивационной системы управления персоналом

У статті проаналізовані наукові підходи мотиваційного механізму в системі управління персоналом і визначені актуальні проблеми мотивації і стимулювання праці в умовах сучасного підприємства.In the article scientific approaches of motivational mechanism are analysed in control system by a personnel and the actual problems of motivation and stimulation of labour are certain in the conditions of modern enterprise.В статье проанализированы научные подходы мотивационного механизма в системе управления персоналом и определены актуальные проблемы мотивации и стимулирования труда в условиях современного предприятия

Evolution of energy density fluctuations in A+A collisions

Two-particle angular correlation for charged particles emitted in Au+Au collisions at the center-of-mass of 200 MeV measured at RHIC energies revealed novel structures commonly referred to as a near-side ridge. The ridge phenomenon in relativistic A+A collisions is rooted probably in the initial conditions of the thermal evolution of the system. In this study we analyze the evolution of the bumping transverse structure of the energy density distribution caused by fluctuations of the initial density distributions that could lead to the ridge structures. We suppose that at very initial stage of collisions the typical one-event structure of the initial energy density profile can be presented as the set of longitudinal tubes, which are boost-invariant in some space-rapidity region and are rather thin. These tubes have very high energy density comparing to smooth background density distribution. The transverse velocity and energy density profiles at different times of the evolution till the chemical freeze-out (at the temperature T=165 MeV) willbe reached by the system are calculated for sundry initial scenarios.Comment: Talk given at the The Sixth Workshop on Particle Correlations and Femtoscopy (WPCF2010), Kiev, September 14 - 18, 201

Tubular initial conditions and ridge formation

The 2D azimuth & rapidity structure of the two-particle correlations in relativistic A+A collisions is altered significantly by the presence of sharp inhomogeneities in superdense matter formed in such processes. The causality constraints enforce one to associate the long-range longitudinal correlations observed in a narrow angular interval, the so-called (soft) ridge, with peculiarities of the initial conditions of collision process. This study's objective is to analyze whether multiform initial tubular structures, undergoing the subsequent hydrodynamic evolution and gradual decoupling, can form the soft ridges. Motivated by the flux-tube scenarios, the initial energy density distribution contains the different numbers of high density tube-like boost-invariant inclusions that form a bumpy structure in the transverse plane. The influence of various structures of such initial conditions in the most central A+A events on the collective evolution of matter, resulting spectra, angular particle correlations and v_n-coefficients is studied in the framework of the HydroKinetic Model (HKM).Comment: 18 pages, 6 figures, the paper to be published in Advances of High Energy Physics (2013, in press

Physical mathematical modelling of difficult elements of acrobatic rock-and-roll

Показаны направления биомеханического обоснования выполнения элемента акробатического рок-н-ролла Фус–сальто с учётом конкретных физических данных спортсменов. Разработана математическая модель для определения влияния на качество выполнения технического элемента таких параметров как: скорость и угол вылета центра масс тела спортсмена, положение центра масс тела спортсмена в начальных фазах бросковых упражнений, начальная угловая скорость вращения тела спортсмена. Определены параметры влияния осевых моментов инерции при различных группировках тела на угловую скорость вращения тела спортсмена в полете и сил сопротивления воздушной среды на характеристики полёта тела. Показаны направления выбора необходимых биомеханических характеристик, которые способны реализовать спортсмены. Предложены рекомендации по повышению эффективности выполнения элемента акробатического рок-н-ролла Фус–сальто.It is shown directions of biomechanics substantiation of implementation acrobatic rock-and-roll Fussalto element taking into account concrete physical data of sportsmen. Mathematical model is developed for determination the influence on a quality of implementation of technical element of such parameters as: speed and angle of flight of centre-of-mass sportsman’s body, position of centre-of-mass body of sportsman in the initial phases of throw exercises, initial angular velocity of rotation of body of sportsman. It is developed mathematical model to determine the impact on the quality of the technical element parameters such as speed and angle of flight of centre-of-mass of the athlete’s body, the position of center-of-mass of the athlete’s body in the initial phases of throwing exercises in the initial angular velocity of the athlete’s body. The parameters of exposure axial moments of inertia for different groupings of body angular velocity the athlete’s body in flight and air resistance forces of environment to flight characteristics of the body. Directions of choice of necessary biomechanics descriptions which are able to realize sportsmen are shown. It is offered recommendations are on the increase of efficiency of implementation of element of acrobatic rock-and-roll of Fus-salt