432 research outputs found
Innowacyjne formy biogospodarki w regionie. Wyzwania i szanse dla Ukrainy
No full textThe purpose of the article is to analyze the innovative forms of bioeconomy in the region. Due to the aim of the research, the main tasks are the following: to characterize such forms of innovative infractructure as business incubator, technopark, technopolis and cluster; to show the relationship between the evolution of the region and implementation of bioeconomy principles within this region; to investigate the successful experience of different countries concerning the establishment of innovative structures based on biotechnology, to explore the specific conditions of bioeconomy development in Ukraine. The paper contains the general characteristics of the bioeconomy as the economy based on the use of renewable biological resources. Exploring this realm of economy there was used scientific material of various domestic and foreign researchers, analytics and practicians as L. I. Fedulova, K. I. Fedulova, O. M. Anisimova, O. I. Didchenko, K. McCormick, N. Kautto, S. Hilgartner, L. Lewidow and international sources of information such as Communication from the Commission to the European Parliament, the Council, the European Economic and Social Committee and the Committee of the Regions. Preparing the study there were used such scientific methods as analysis, synthesis, generalization, explanation, classification. The article shows the importance of biotechnology using in the region that was confirmed by the world experience. We believe that the main objects of strong activation of biotech sector in the region are the bioclusters. They have the most comprehensive and highest efficiency in terms of uniting the efforts of stakeholders. It is confirmed by the experience of many countries. So, the bioeconomy serves as a new part of the national economy, which has unlimited possibilities for prosperity in the region of its localization through the various innovative forms of expression.Celem niniejszego artykułu jest analiza innowacyjnych form biogospodarki w regionie. Ze względu na cel badań, podstawowe zadania są następujące: scharakteryzowanie takich form innowacyjnej infrastruktury jak: inkubator przedsiębiorczości, park technologiczny, technopolis oraz klaster; pokazanie zależności pomiędzy ewolucją regionu oraz implementacją zasad bioekenomicznych w tym regionie; w celu zbadania udanych doświadczeń w różnych krajach związanych z ustanawianiem innowacyjnych infrastruktur opartych na biotechnologii oraz w celu wskazania specyficznych warunków rozwoju biogospodarki na Ukrainie. Niniejszy referat zawiera ogólne cechy biogospodarki oraz ekonomii opartej na wykorzystaniu odnawialnych zasobów biologicznych. Badanie tej dziedziny ekonomii zostało wykorzystane jako materiał do badań wykonywanych przez rozmaitych naukowców. Zarówno krajowych jak i zagranicznych, zarówno analityków jak i praktyków takich jak L. I. Fedulova, K. I. Fedulova, O. M. Anisimova, O. I. Didchenko, K. McCormick, N. Kautto, S. Hilgartner czy L. Lewidow. Ponadto zostały one wykorzystane w materiałach międzynarodowych takich jak: komunikacja pomiędzy Komisją Europejską a Parlamentem Europejskim, Radą Unii Europejskiej, Europejskim Komitetem Ekonomiczno-Społecznym oraz Komitetem Regionów. Podczas opracowania badań używano takich metod naukowych jak analiza, synteza, uogólnienie, wyjaśnianie oraz klasyfikacja. Artykuł ten pokazuje znaczenie biotechnologii stosowanej w regonie, która została potwierdzona światowym doświadczeniem. Wierzymy, iż głównym przedmiotem silnego pobudzenia sektora biotechnologii w regionie są bioklastry. Są one najbardziej wszechstronne i są najbardziej efektywne w jednoczeniu wysiłku udziałowców. Zostało to potwierdzone doświadczalnie w wielu krajach. Biogospodarka funkcjonuje zatem jako nowa część narodowej gospodarki, która dysponuje nieograniczonymi możliwościami rozwoju w regionie ze względu na jego lokalizację poprzez wprowadzanie wiele innowacyjnych form
МЕТОДИКА НАВЧАННЯ ПУНКТУАЦІЇ ЗА ПІДРУЧНИКОМ «АЗБУКА ПРАВОПИСУ» Д.ТИХОМИРОВА: МОРАЛЬНО-ЕТИЧНА СПРЯМОВАНІСТЬ ВИДАННЯ
Get PDFThe article analyzes the textbook «ABC spelling» by outstanding philologist of the XIX – XX century D. Tykhomyrov. The author focused on the using of the principles of accessibility, the transition from simpler to more complex material, the logical thinking, the reading interests of childrenУ статті проаналізовано посібник «Азбука правопису» видатного вченого-філолога кінця ХІХ – початку ХХ століття Д.Тихомирова. Автор акцентував на використанні принципів доступності, системності, переходу від простішого до складнішого, розвитку логічного мислення, читацьких інтересів дітей
The organization of the pedagogical museum communication with suppliers of higher education during the studying of natural sciences
No full textThe article analyzes the specifics of the organization of museum communication with students during the study of natural sciences. It is explained that the modern natural history museum is an illustrator of academic disciplines in the higher education institutions. It is noted that museum pedagogy plays an important role in shaping of the scientific worldview of the student. It is substantiated that the using of the museum exhibits in the study of the natural sciences contributes to the deeper understanding of the educational material, makes the educational process more interesting and emotionally rich. The purpose of the article is to determine the role of museum communication in the shaping of the scientific worldview of the future teachers of geography and biology in the study of natural sciences. It is explained that the pedagogical museum communication is the special connection with teachers and students of higher education during their work in the museum educational environment in order to solve pedagogical problems. The museum pedagogy has been found to be an interdisciplinary science closely related to museum studies, pedagogy and psychology.
The author of the article uses a complex of scientific research methods: theoretical: (scientific and bibliographic method, historical and logical, analysis of scientific literature; conceptual and terminological analysis, synthesis, comparison, generalization and systematization of the data obtained) and empirical (system analysis, synthesis, induction and deduction, abstraction and concretization, comparison, generalization).
The author also presents models of museum communication. The article substantiates that during museum communication in the study of natural sciences the teacher should determine the purpose of visiting the exhibition, develop tasks for students, determine methods and forms of work with higher education, develop rules of the conduction in the museum space. The organization of museum communication with students during the natural sciences studying helps to understand the evolutionary and the ecological context of nature, gives the understanding of the relationship of flora and fauna, the communication in the museum space helps to improve the pedagogical culture and the professional skills of the future teachers of biology and geography
МЕТОДИКА НАВЧАННЯ ПУНКТУАЦІЇ ЗА ПІДРУЧНИКОМ «АЗБУКА ПРАВОПИСУ» Д.ТИХОМИРОВА: МОРАЛЬНО-ЕТИЧНА СПРЯМОВАНІСТЬ ВИДАННЯ. (Methods of teaching punctuation on the base of the «ABC spelling}} textbook by D.Tykhomyrov: moral and ethical orientation of the textbook.)
Get PDFУ статті проаналізовано посібник «Азбука правопису» видатного вченого-філолога кінця ХІХ - початку ХХ століття Д.Тихомирова. Автор акцентував на використанні принципів доступності, системності, переходу від простішого до складнішого, розвитку логічного мислення, читацьких інтересів дітей.
(The article analyzes the textbook «ABC spelling» by outstanding philologist of the XIX - XX century D. Tykhomyrov. The author focused on the using of the principles of accessibility, the transition from simpler to more complex material, the logical thinking, the reading interests of children.
Benchmark of collisional–radiative models for ITER beams at the Alcator C-Mod tokamak
No full textThe beam-based plasma diagnostics on ITER require high accuracy and reliability which accordingly put challenging requirements on the collisional–radiative (CR) models used for description of the excited states of beam atoms. These states are known to play an essential role in implementation and interpretation of neutral beam-based diagnostics, such as the motional Stark effect (MSE), charge-exchange recombination spectroscopy (CXRS), beam-emission spectroscopy (BES) and in the dynamics of beam penetration. The latest analyses demonstrate that the widely used assumption of statistical populations among the beam excited states is questionable for high beam energies and high magnetic fields. Here we report an empirical verification of the recently developed non-statistical nkm-resolved CR model (Marchuk et al 2010 J. Phys. B: At. Mol. Opt. Phys. 43 011002) and the short extrapolation to the relevant parameter range for ITER. The experiment was performed on the Alcator C-Mod tokamak, which operates in a unique range of parameters well suited for testing CR models for ITER beams. Beam emission spectra are collected for a selected range of plasma parameters. The line ratios σ1/σ0, π4/π3 and Σσ/Σπ are measured and compared to the n-resolved statistical population model and the new non-statistical nkm-resolved CR model. The measured ratios show clear deviations from the statistical model and a good agreement with the non-statistical results. The difference between the experimental values and nkm-resolved simulations for the most part is within 10% for all three line ratios. The largest deviation here is for the σ1/σ0 ratio that reaches up to 14% for the lowest electron density of 0.6 × 1020 m−3. In contrast, the difference between experiment and the n-resolved (statistical) model is within 13–27% for the 50 keV/u Alcator C-Mod beam and expected to be up to 32% for 100 keV/u and up to 43% for 500 keV/u ITER beams. The discussed effect must be taken into account for the proposed CXRS/BES and MSE diagnostics for ITER
Zastosowanie pyłu granitowego jako efektywnego wypełniacza mieszanek betonowych
No full textThe article presents the results of experimental studies of the influence of granite dust on the properties and durability of concrete. The use of industrial waste - granite dust, in the processing of granite into crushed stone, at the same time allows the rational use of natural resources and solve environmental problems. The possibility of improving the construction and technical properties of concrete filled with granite dust is considered. Experimental-statistical models of technological and physical-mechanical properties of concretes are presented and analyzed, ways of their improvement are shown. The complex of strength properties, water absorption, frost resistance, and durability of such concrete have been studied. The studied concrete are characterized by a more intensive set of strength and obtaining mixtures of “sticky” consistency. Due to the partial replacement of sand by granite dust, the microstructure of the cement matrix is compacted, which is the main reason for reducing porosity and increasing the durability of structures based on the proposed concrete.W artykule przedstawiono wyniki badań doświadczalnych wpływu pyłu granitowego na właściwości i trwałość betonu. Badano betony wykonane z użyciem: cementu portladzkiego CEM I 42,5N, kruszywa grubego granitowego i pyłu granitowego, piasku i superplastyfikatora na bazie estrów polikarboksylowych. Badania eksperymentalne, których wyniki podano w pracy, przeprowadzono z wykorzystaniem matematycznego planowania eksperymentu, co pozwoliło na algorytmizację wykonania eksperymentów według schematu, który jest optymalny zarówno z punktu widzenia zakresu pracy eksperymentalnej, jak i wymagań statystycznych. Czynnikami zmiennymi był wskaźnik W/C (od 0,48 do 0,60) oraz zawartość pyłu granitowego (od 0 do 200 kg/m3). Zwiększenie zawartości pyłu granitowego (PG) od 0 kg/m3 do 200 kg/m3 spowodowało wzrost wytrzymałości wcześnej o 15%, 30% i 50% przy W/C, odpowiednio: 0,48, 0,54 i 0,60. W wieku 28 dni wpływ dodatku pyłu granitowego jest bardziej znaczący przy wysokich wartościach stosunku W/C. Wzrost zawartości pyłu granitowego od 0 kg/m3 do 200 kg/m3 spowodował wzrost wytrzymałości odpowiednio o 8-12% przy W/C = 0,48, o 28-32% - przy W/C = 0,54 i do 50% przy W/C = 0,48. Dodatek pyłu granitowego ma także znaczący wpływ na nasiąkliwość betonu. Zwiększenie zawartości pyłu do 200 kg/m3 spowodowało znaczne zmniejszenie nasiąkliwości z 4,8% do 3,8%, z 4,2% do 3,5% i z 3,4% do 3,0% przy wskaźnikach W/C, wynoszących odpowiednio 0,48; 0,54 i 0.60, Dodatek pyłu granitowego znacznie ogranicza (ale nie eliminuje) porowatość kapilarną strefy kontaktowej, w skutek gwałtownej zmiany całkowitej zawartosci Ca(OH)2. Dodatkowo, efekt “mikrowypełniacza”, który działa jak centrum krystalizacji, przyśpiesza początkowy etap chemicznego utwardzania. Produkty hydratacji są osadzane na małych cząsteczkach pyłu, które tworzą centra krystalizacji. Betony z dodatkiem pyłu granitowego charakteryzują się dość dużą odpornością na korozję w różnych środowiskach agresywnych, w tym na działanie kwasów. Na podstawie wyników badań wykazano, że odporność korozyjna betonu wzrasta wraz ze wzrostem dodatku pyłu granitowego. W szczególności odporność na korozję magnezową w próbkach bez pyłu po 90 dniach wynosi 0,75, natomiast z pyłem - 0,8. Niski współczynnik W/C oraz poprawa parametrów struktury porowej betonów z dodatkiem pyłu granitowego przyczynia się do wzrostu ich mrozoodporności. Dla badanych struktur betonowych mrozoodporność wynosi F200-F300. W skutek częściowego zastąpienia piasku pyłem granitowym w mieszance, następuje zagęszczenie mikrostruktury matrycy cementowej, co jest główną przyczyną zmniejszenia porowatości i zwiększenia trwałości konstrukcji wykonanych z tego betonu
Energy and atomic level distribution of sputtered tungsten determined by high-resolution optical spectroscopy
No full textEnergy and atomic level distribution of sputtered tungsten determined by high-resolution spectroscopy S. Ertmer, O. Marchuk, S. Dickheuer, S. Brezinsek, Ph. Mertens, M. Rasinski, and A. KreterForschungszentrum Jülich GmbH - Institut für Energie- und Klimaforschung -Plasmaphysik, Partner of the Trilateral Euregio Cluster (TEC), 52425 Jülich, [email protected] (W) is proposed as plasma-facing material (PFM) in the divertor and in the main chamber of future fusion devices. The lifetime of the PFM is mainly determined by erosion; passive spectroscopy is a very powerful, reliable and cheap in-situ diagnostic tool to monitor the W gross erosion. One of the unresolved problems related to physical sputtering of W by ion impact in the energy range of 100-200 eV remains the initial energy level population distribution of the W atoms. A further unresolved problem is that until now there are considerable deviations between the modelled and experimentally observed energy and angular distribution of sputtered W [1,2]. Both problems are addressed in this work using spectroscopy with high spatial and spectral resolution in the linear plasma device PSI-2 [3].For measurements of the population distribution of sputtered W atoms within the ground state (5D0) and the first excited levels, e.g. the quintet 5DJ (J=1,..4) and the metastable level 7S3, a target was exposed to an argon plasma (electron temperature Te = 2 eV; electron density ne = 1∙1012 cm-3). The ions were accelerated via applying a bias voltage onto the target to kinetic energies Ei between 100 and 200 eV. The line intensities in front of the target for neutral W I lines were investigated by an imaging spectrometer in the Czerny-Turner configuration (resolving power λ/Δλ ≈ 3∙104) with a high spatial resolution of 50 µm/px [4]. The development of the emission of W I lines in front of the target was tested against the lifetime of W I levels populated by electron impact. It was found that for a target at room temperature the W atoms are sputtered in the ground state 5D0, whereas the other levels 5DJ>0 and 7S3 get populated deeper in the plasma. The energy distribution function of sputtered W atoms is obtained from the Doppler shift affected line shape of the W I line (5D0-7F1) detected perpendicularly to the target surface by a high resolution Echelle spectrometer (λ/Δλ ≈ 7∙105). The model of the Doppler-shifted emission at the surface [5] was extended to take into account the Zeeman splitting and instrumental broadening of spectral lines [6]. The data for W is in a very good agreement with the Thompson energy distribution function featuring an increase in the high energy tail with increasing impact energy of the incident Ar+ ions. Moreover, this method determines in-situ the optical reflectance of the target at specific wavelengths, which impacts the measured net emission. We demonstrate here for the first time that high spectral resolution spectroscopy of sputtered atoms in combination with polarisation measurements close to the pseudo-Brewster angels can be used for surface morphology studies independently of other diagnostics.[1] Stepanova M et al, 2001 J. Vac. Sci. Technol. A 19 2805[2] Nishijima D et al, 2011 J. Nucl. Mater 415 96–99 [3] Kreter A et al, 2015 Fusion Sci. Technol. 68 8–14 [4] Marchuk O et al, 2018 J Phys B: At. Mol. Opt. Phys. 51 025702 (19pp)[5] Dickheuer S et al, 2019 Physics of Plasmas 26, 073513 [6] Ertmer S. et al, Phys. Scr. B (to be published
High‐order difference schemes for convection‐diffusion interface problems
No full textOn non‐uniform mesh new high‐order compact finite difference approximations of the solution and the flux to convection‐diffusion interface problems in one‐dimension are constructed and analyzed. Explicit formulas based on new Marchuk integral identities that give O(h2), O(h4), . . . accuracy are derived. New numerical integration quadrature procedures for computing three‐point schemes of any prescribed order of accuracy are developed. Numerical experiments confirm the theoretical results.
Aukštos eilė skirtumų schemos konvekcijos-difuzijos sąveikos uždaviniams
Straipsnyje sukonstruotos ir analizuojamos naujos aukštos eilės kompaktinės baigtinių skirtumų schemos, aproksimuojančios konvekcijos‐difuzijos sąveikos uždavinius vienmačiu atveju. Gautos išreikštinės O(h 2), O(h4), … eilės tikslumo formulės, pagrįstos Marchuko integralinėmis tapatybėmis. Išvestos naujos skaitmeninio integravimo kvadratūrinės nurodyto tikslumo formulės tritaškių schemų skaičiavimui. Pateikti skaitiniai eksperimentai, patvirtinantys teorinius rezultatus.
First Published Online: 14 Oct 201
Relationship between criteria of educational success and characteristics of the level of development of personality traits and psychophysiological functions of students: Current trends
Get PDFDetermination of the interrelationship and interdependence between criterions of
academic success by academic general and by academic professionally oriented
disciplines and characteristics of the level of development of personality traits and
psychophysiological functions of students of higher education institutions, especially
those that learning specialists in regulated specialties, such as medicine, there is no
doubt that there are the most important tasks of hygienic content, which is marked by
a significant professional orientation value, and provides an opportunity to find out the
degree of expression of the adaptation of the students’ organism, to establish the level
of their professional suitability for the performance of professional skills [1, 2, 3].
The aim of the study is to establish the relationship between success educational
success and characteristics of the level of development of personality traits and
psychophysiological functions of students.
The research was conducted among students of National Pirogov Memorial
Medical University among the professionally significant psychophysiological
functions that were subject to in-depth research, such criterions of the functional
capabilities of higher nervous activity were included, such as the latent period of visual motor reaction, mobility and confidence of nervous processes, features of
concentration, stability and switching attention and psychophysiological
characteristics of mental capacity (work efficiency, degree of involvement in the
activity being performed, mental stability), functional capabilities of the visual sensory
system (critical frequency of the fusion of light flashes) and the somatosensory system
(coordination of movements).
In the same time, criterions of temperament, anxiety, character, level of subjective
control, leading correlates of mental states and, above all, states of asthenia and
depression, aggressive manifestations, emotional burnout, etc., were identified as the
leading professionally significant of the personality traits. In order to establish the
peculiarities of the relationship between criterions of educational success and
characteristics of the level of development of personality traits and
psychophysiological functions of students, the procedures of correlation and factor
analysis were used. In the course of the conducted research, it was established that the
level of general academic success and, above all, academic success in individual
professionally oriented disciplines, among students is marked by the presence of
extremely close connections with a set of criterions that mark the level of development
of psychophysiological functions related to the functional state of higher nervous
activity, attention, the visual sensory and the somatosensory system, as well as the
peculiarities of the formation of such personality traits as the properties of state and
trait anxiety and the structure of temperament, the peculiarities of neuropsychological
states and aggressive personality manifestations, as well as the level of subjective
control of student youth. A number of unfavorable changes were revealed even on the
examination tests, in particular, a significant impact on criterions of educational
success of the characteristics of the least constructive in terms of correlates of
psychological protection mechanisms, phases of emotional burnout, such as phases of
resistance and phases of exhaustion, anxious manifestations of the personality,
characteristics of asthenic and depressive states. The obtained results should be taken
into account in the future during the development of the implementation of health preserving technologies and modern approaches aimed at optimizing professional
learning, preventing the occurrence of adverse changes in the psychophysiological
state of future doctors during the learning phase in higher medical institutions
education and carrying out psychohygienic correction and psychophysiological
rehabilitation of typical professional adaptation processes
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