371 research outputs found

    Spill over effects of Geopolitical risk on the banking sector of CIS countries

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    This study examines the spill over effects of geopolitical risks (GPR) and extreme shocks on Commonwealth of Independent States (CIS) economies, as result of the Russia – Ukraine war, with particular focus on financial institutions. Further, we investigate whether the performance of CIS banks has been impacted by economic sanctions imposed on Russia since the start of the conflict. Understanding GPR transmission mechanisms and consequences on Russia’s neighbouring countries allows policymakers and financial institutions to formulate and implement risk management strategies. For a global measure of geo-political risk, we employ the global GPR index from Caldara and Iacoviello (2022) and we use the Diebold-Yilmaz (2012) connectedness model to estimate the spill over effect. First, we investigate the spill over effect of the recent conflict on the returns of banks for a sample of CIS countries. Further, we examine the spill over effect on macro-economic indicators of our sample of countries. Our preliminary results do not show significant GPR transmissions in terms of returns and risk within the banking sectors of the CIS countries examined

    The 30th EPIC: The Scottish Ezra Pound. (The 30th Ezra Pound International Conference “Ezra Pound and the Legacy of The Cantos”, Edinburgh, Great Britain, June 27–30, 2023)

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    The article provides an overview of the 30th international conference “Ezra Pound and the Legacy of The Cantos”. The conference was held at the University of Edinburgh (June 27–30, 2023). The conference was attended by researchers from fifteen countries, including scholars from the USA, China, Germany, France, South Korea, Great Britain, Russia. The forum was attended by over 60 delegates — teachers, scholars, writers, translators. The conference topics covered all aspects of the life and work of Ezra Pound, including not only the main theme of the conference — Pound's global epic The Cantos — but also addressed the study of the American poet’s early poetics, his last years, his opinions on science, politics, history, and the circle of his personal contacts. The main vectors of the conference were (1) Pound’s London years; (2) his Asian (Chinese and Japanese) studies; (3) the legacy of Antiquity, the Middle Ages and the Renaissance in Pound's work; (4) Pound’s image in different world cultures and literatures; (5) the methods of translation used by Pound; (6) different approaches to the analysis of The Cantos. A fruitful and heated discussion was sparked by the topic “Is there a future for Pound studies?” proposed for the roundtable discussion at the final section. One of the most important features of the conference was its focus on the study of not only Pound's poetry, but also on the poetry of contemporary authors: according to the established tradition, the closing panel of the conference was dedicated to poetry readings and subsequent discussion

    Giulia Murgia, La “Tavola Ritonda” tra intrattenimento ed enciclopedismo, Roma, Sapienza Università Editrice, 2015

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    Rec. a Giulia Murgia, La “Tavola Ritonda” tra intrattenimento ed enciclopedismo, Roma, Sapienza Università Editrice, 2015

    Problems and perspectives of bilingual education in Republic of Tatarstan

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    The article deals with the problems of language policy and bilingual education in such polyethnic region as Tatarstan. Language policy is aimed on supporting of equal state of Russian and Tatar languages in communication and development of bilingual person. Tatar and Russian languages are studied at school in equal volumes. But Tatar-Russian bilingualism is fully functional while Russian-Tatar bilingualism is almost absent. It is caused by social factors and scientific and pedagogical aspects of bilingual education in republic. Modernization of textbooks, language studying methods, using information and communication technologies may be perspective directions of studying languages. © IDOSI Publications, 2014

    Specific features of the complexation of copper(II), manganese(II), and gadolinium(III) with salicylic, benzoic, and sulfosalicylic acids in aqueous solutions of nonionic surfactant

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    The methods of potentiometric titration and NMR relaxation were used to study the influence of the nonionic surfactant (NS), namely Triton X-100 (TX), on the acid-base and complexing properties of salicylic (H2L), benzoic (HR), and sulfosalicylic (H3X) acids. The influence of NS added on the titration curves of the examined acids was analyzed and it was established that salicylic and benzoic acids are bound by micelles to form species {H2L(TX)} and {HR(TX)} with logK equal to 2.12±0.03 and 1.57±0.03, respectively. The acidic properties of H3X are virtually the same in water and in the NS solutions. A significant (more than two-fold) increase in the proton relaxation rate is observed in the solutions of the mixtures of salicylic acid and TX in the presence of Cu2+, Mn2+, or Gd3+ ions. This effect was explained by the formation of ternary cation-ligand-surfactant species. For Cu(II) and Mn(II), compounds {M(HL)2(TX)2} with log K equal to 0.90±0.04 and 1.05±0.04, respectively, were detected. Complexes of composition {Gd(HL)3(TX)2} with logK=0.22±0.05 were discovered for Gd(III). The ternary species of benzoic acid are formed only in the presence of gadolinium: {GdR(TX)} with logK=-2.17±0.04. Sulfosalicylic acid does not form such mixed NS-containing compounds with the cations examined

    The formation of complexes of iron(III) with salicylic acid in the presence of cationic and nonionic surfactants

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    The effect of dodecylpyridinium bromide (DPB) and ethoxylated sorbitan palmitate (Tween 40) on the formation equilibrium of the complex of iron(III) with salicylic acid (H2L) in aqueous solutions was studied at 298 K by the spectrophotometry and NMR-relaxation techniques. It was found that an apparent decrease in the stability of [FeL]+ complex was associated with the solubilization of the ligand in its molecular form within simple and mixed micelles. Based on a mathematical description of the effect of surfactants within the frame-work of the model proposed, the binding constants of salicylic acid with micelles of cationic (logK = 2.0 ± 0.1) and anionic (logK = 2.4 ± 0.1) surfactants were determined. It was concluded that salicylic acid is solubilized in the boundary layer between the hydrocarbon core of micelles and head groups of surfactants

    Effect of sodium dodecylsulfate on equilibria of copper complexation

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    Effect of sodium dodecylsulfate (SDS) on the complexation of copper(II) with iminodiacetic acid (IDA) and ethylene diamine (En) is investigated using pH-metric titration and NMR relaxation together with computer treatment of the results obtained. In the ternary system of Cu(II)-IDA-SDS the competition for Cu2+ ions between the complexing agent and surface active agent (SDS) was found, whereas in the presence of En the ternary associates with monomeric surfactant anions were observed

    The formation of complexes of iron(III) with salicylic acid in the presence of cationic and nonionic surfactants

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    The effect of dodecylpyridinium bromide (DPB) and ethoxylated sorbitan palmitate (Tween 40) on the formation equilibrium of the complex of iron(III) with salicylic acid (H2L) in aqueous solutions was studied at 298 K by the spectrophotometry and NMR-relaxation techniques. It was found that an apparent decrease in the stability of [FeL]+ complex was associated with the solubilization of the ligand in its molecular form within simple and mixed micelles. Based on a mathematical description of the effect of surfactants within the frame-work of the model proposed, the binding constants of salicylic acid with micelles of cationic (logK = 2.0 ± 0.1) and anionic (logK = 2.4 ± 0.1) surfactants were determined. It was concluded that salicylic acid is solubilized in the boundary layer between the hydrocarbon core of micelles and head groups of surfactants. © 1998 MAK Haya/Interperiodica Publishing

    Specific features of the complexation of copper(II), manganese(II), and gadolinium(III) with salicylic, benzoic, and sulfosalicylic acids in aqueous solutions of nonionic surfactant

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    The methods of potentiometric titration and NMR relaxation were used to study the influence of the nonionic surfactant (NS), namely Triton X-100 (TX), on the acid-base and complexing properties of salicylic (H2L), benzoic (HR), and sulfosalicylic (H3X) acids. The influence of NS added on the titration curves of the examined acids was analyzed and it was established that salicylic and benzoic acids are bound by micelles to form species (H2L(TX)} and (HR(TX)} with logK equal to 2.12 ± 0.03 and 1.57 ± 0.03, respectively. The acidic properties of H3X are virtually the same in water and in the NS solutions. A significant (more than two-fold) increase in the proton relaxation rate is observed in the solutions of the mixtures of salicylic acid and TX in the presence of Cu2+, Mn2+, or Gd3+ ions. This effect was explained by the formation of ternary cation-ligand-surfactant species. For Cu(II) and Mn(II), compounds {M(HL)2(TX)2} with logK equal to 0.90 ± 0.04 and 1.05 ± 0.04, respectively, were detected. Complexes of composition {Gd(HL)3(TX)2} with logK = 0.22 ± 0.05 were discovered for Gd(III). The ternary species of benzoic acid are formed only in the presence of gadolinium: (GdR(TX)} with logAT=-2.17 ± 0.04. Sulfosalicylic acid does not form such mixed NS-containing compounds with the cations examined. © 1998 MAK Haya/Interperiodica Publishing

    The Gallium Neutrino Absorption Cross Section and its Uncertainty

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    In the recent Baksan Experiment on Sterile Transitions (BEST), a suppressed rate of neutrino absorption on a gallium target was observed, consistent with earlier results from neutrino source calibrations of the SAGE and GALLEX/GNO solar neutrino experiments. The BEST collaboration, utilizing a 3.4 MCi 51Cr neutrino source, found observed-to-expected counting rates at two very short baselines of R=0.791 plus/minus 0.05 and 0.766 plus/minus 0.05, respectively. Among recent neutrino experiments, BEST is notable for the simplicity of both its neutrino spectrum, line neutrinos from an electron-capture source whose intensity can be measured to a estimated precision of 0.23%, and its absorption cross section, where the precisely known rate of electron capture to the gallium ground state, 71Ge(e,nue)71Ga(g.s.), establishes a minimum value. However, the absorption cross section uncertainty is a common systematic in the BEST, SAGE, and GALLEX/GNO neutrino source experiments. Here we update that cross section, considering a variety of electroweak corrections and the role of transitions to excited states, to establish both a central value and reasonable uncertainty, thereby enabling a more accurate assessment of the statistical significance of the gallium anomalies. Results are given for 51Cr and 37Ar sources. The revised neutrino capture rates are used in a re-evaluation of the BEST and gallium anomalies.Comment: 21 pages, 5 figure
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