Future teachers' communicative culture forming by means of drama-based pedagogy

© Serials Publications. The relevance of the paper is conditioned by the transformation of the educational paradigm, from the "educated person" to the "man of a culture ", who integrates different cultures, is oriented to dialogue with the society, capable of creating the image of the world and is able its own image in this world. The purpose of the paper is to disclose the technological reserves for the formation of the communication culture of the future teacher as a "man of culture". As such a reserve, the authors define the use of the technologies of drama pedagogy, based on the communicative nature of the theater as a socio-cultural form of creative communication. The authors consider the communication effects of rhetorical theatrical tools: The effect of visual image, the first phrases, information quantum ejection, relaxation, imagination, discussion, ellipse; functions of pedagogical communication according to the laws of the theatrical action; prove the effectiveness of their use in the process of forming the communicative culture of the future teacher. The paper is intended for educators and psychologists dealing with the problems of researching the culture of the future teachers, including their communication culture

Interfacial interactions of hard polyelectrolyte-stabilized luminescent colloids with substrates

© 2015 Elsevier B.V.. The present work introduces an origin of sensing function of polyelectrolyte-coated colloids based on Tb(III) complexes with calix[4]resorcinarene cavitand bearing four 1,3-diketone groups at the upper rim. The Tb(III)-centered luminescence of the colloids remains unchanged at pH 3-9, although the Tb(III) complexes are highly pH-dependent in DMF solutions. Both colloidal and luminescent properties of the colloids are stable within one month at least, which reveals stability of complex-based hard nanotemplates and soft polyelectrolyte deposition. The chelating substrates (catechol, tetracycline and fluoroquinolone derivatives) induce quick and reproducible luminescent response of the complex-based colloids without any detectable changes of their colloidal properties. The ternary complex formation at the interface of the colloids is the reason for their luminescent response on the substrates in aqueous solutions. Both the insolubility of the Tb(III)-containing cores and the shielding and/or buffer effect of the polyelectrolyte coating affect the interfacial complex formation, which results in more selective luminescent response of the colloids on the tetracycline and fluoroquinolone antibiotics in comparison with the complexes in solutions

High performance magneto-fluorescent nanoparticles assembled from terbium and gadolinium 1,3-diketones

© The Author(s) 2017.Polyelectrolyte-coated nanoparticles consisting of terbium and gadolinium complexes with calix[4]arene tetra-diketone ligand were first synthesized. The antenna effect of the ligand on Tb(III) green luminescence and the presence of water molecules in the coordination sphere of Gd(III) bring strong luminescent and magnetic performance to the core-shell nanoparticles. The size and the core-shell morphology of the colloids were studied using transmission electron microscopy and dynamic light scattering. The correlation between photophysical and magnetic properties of the nanoparticles and their core composition was highlighted. The core composition was optimized for the longitudinal relaxivity to be greater than that of the commercial magnetic resonance imaging (MRI) contrast agents together with high level of Tb(III)-centered luminescence. The tuning of both magnetic and luminescent output of nanoparticles is obtained via the simple variation of lanthanide chelates concentrations in the initial synthetic solution. The exposure of the pheochromocytoma 12 (PC 12) tumor cells and periphery human blood lymphocytes to nanoparticles results in negligible effect on cell viability, decreased platelet aggregation and bright coloring, indicating the nanoparticles as promising candidates for dual magneto-fluorescent bioimaging

Structure impact in antenna effect of novel upper rim substituted tetra-1,3-diketone calix[4]arenes on Tb(III) green and Yb(III) NIR-luminescence

© 2016 Elsevier Ltd.Two novel calix[4]arene macrocyclic ligands functionalized with four 1,3-diketone groups at the upper and hydroxyl (3) or propyloxy-groups (6) at the lower rims were synthesized and characterized using NMR, IR spectroscopy, mass spectrometry, and elemental analysis. UV-vis spectrophotometry and ESI mass spectrometry studies indicate 1:1 complex formation of ligands 3 and 6 with Ln(III) (Ln=Tb, Yb) in alkaline DMF solutions resulted from coordination of Ln(III) with 1,3-diketonate groups. Luminescence study of Ln(III) complexes with 3 and 6 reveals significant difference in antenna effects of their deprotonated forms on both Tb(III)- and Yb(III)-centered luminescence. Comparison of ligand-centered emission for ligands 3 and 6 points to the latter as more efficient antenna for Tb(III) and Yb(III). Different conformational behavior of ligands 3 and 6 in alkaline media is assumed as a reason for the experimentally observed difference in sensitization pathways in Ln(III) complexes with 3 and 6

Thermal effects of carbonated hydroxyapatite modified by glycine and albumin

In this work calcium phosphate powders were obtained by precipitation method from simulated solutions of synovial fluid containing glycine and albumin. X-ray diffraction and IR spectroscopy determined that all samples are single-phase and are presented by carbonate containing hydroxyapatite (CHA). The thermograms of solid phases of CHA were obtained and analyzed; five stages of transformation in the temperature range of 25-1000°C were marked. It is shown that in this temperature range dehydration, decarboxylation and thermal degradation of amino acid and protein connected to the surface of solid phase occur. The tendency of temperature lowering of the decomposition of powders synthesized from a medium containing organic substances was determined. Results demonstrate a direct dependence between the concentration of the amino acid in a model solution and its content in the solid phase

Violation of the antioxidant system in patients with nasopharyngeal tonsil hypertrophy

Nasopharyngeal tonsil is solitary lymphadenoid formation which is the first in the path of air inhaled in the nose breathing. Adenoid vegetations are accompanied by inflammation in 32.8% of cases. Important role played by the processes of free radical oxidation in the pathogenesis of inflammation. Inflammatory process creates a favorable environment for the development and worsening of lipid peroxidation. The study involved 27 children with nasopharyngeal tonsil hypertrophy degree ll-lll and 14 healthy children aged 1,7-14 years. The study found a correlation between the antioxidant activity of the skin and serum of children with nasopharyngeal tonsil hypertrophy, as well as significant differences between the indices of antioxidant activity in the skin and serum of healthy children and children with nasopharyngeal tonsil hypertrophy.Носоглоточная миндалина - это солитарное лимфаденоидное образование, которое является первым барьером на пути вдыхаемого воздуха при нормальном носовом дыхании. В 32,8% случаев аденоидные вегетации сопровождаются воспалительным процессом. В патогенезе воспаления важную роль играют процессы свободно-радикального окисления. Воспалительный процесс так или иначе создаёт благоприятную обстановку для развития и усугубления процессов перекисного окисления липидов. Проведено обследование 27 детей с гипертрофией носоглоточной миндалины 11-111 степени и 14 здоровых детей в возрасте 1,7-14 лет. В результате исследования выявлена корреляционная связь между антиоксидантной активностью кожи и сыворотки детей с гипертрофией носоглоточной миндалины, а также достоверные различия между показателями антиоксидантной активности кожи и сыворотки у условно здоровых детей и детей с гипертрофией носоглоточной миндалины

RESULTS AND PERSPECTIVES OF STUDYING THE OCCUPATIONAL DISEASES IN WORKERS OF AIRCRAFT INDUSTRY IN EAST SIBERIA

The materials of the long-studies among the employees working in the aircraft industry, of both the patients with occupational diseases and the practically healthy persons are discussed in the paper. Using the method of the biological feedback for the vibration-induced disease prevention has been grounded. The preliminary results of the experimental studies using the animals are presented in this paper

A facile synthetic route to convert Tb(III) complexes of novel tetra-1,3-diketone calix[4]resorcinarene into hydrophilic luminescent colloids

The work presents the synthesis of a novel calix[4]resorcinarene cavitand bearing four 1,3-diketone groups at the upper rim and its complex formation with Tb(iii) ions in DMF and DMSO solutions. Electrospray ionization mass spectra, 1H NMR, UV-Vis and luminescence spectra indicate a long (three hours at least) equilibration time for the complex formation between the cavitand and Tb(iii) in alkaline DMF and DMSO solutions. These results are explained by the restricted keto-enol conversion, resulting from the steric hindrance effect of the methylenedioxy-groups linking the benzene rings within the cavitand framework. A facile synthetic route to convert luminescent Tb(iii) complexes of various stoichiometries into luminescent hydrophilic colloids is disclosed in this work. The route is based on the reprecipitation of the Tb(iii) complexes from DMF to aqueous solutions with further polyelectrolyte deposition without prior separation of the luminescent complexes. The luminescent colloids exhibit high stability over time and in buffer systems, which is a prerequisite for their applicability in analysis and biolabeling. © the Partner Organisations 2014