Search Results - "Trofimova, E. V."
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Ice caves of the Siberia: genesis and morphological features
Published in Environmental earth sciences (01-03-2019)“…The paper is devoted to the first complex research of ice glaciation in the frame work of a huge territory of the Siberia. Different types of underground…”
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Corallite Crusts as the Specific Form of Karst Morpholithogenesis in Cold Climate
Published in Doklady earth sciences (01-06-2019)“…The background of the conditions causing the formation of corallite crusts, constituted by the fine-fibrous spherulites, is considered. The corallite crusts…”
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Investigation of Isotopes of Ice in the Askinskaya and Kinderlinskaya Caves (Southern Urals)
Published in Lëd i sneg (01-01-2023)“…The aim of this work was to determine mechanisms of formation of perennial ice in caves of the Southern Urals, as well as to find sources of water and…”
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o-Acylbenzonitriles: Synthesis and Heterocyclization under Acid Hydrolysis of the Cyano Group
Published in Russian journal of organic chemistry (01-03-2018)“…2-Cyanobenzophenones were synthesized by reaction of 2-bromobenzophenones with copper(I) cyanide in DMF, and their transformations involving acid hydrolysis of…”
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Reductive Heterocyclization of 2-Cyanobenzophenones by the Action of NaBH4. New Efficient Synthesis of 3-Arylphthalides
Published in Russian journal of organic chemistry (01-04-2018)“…The reduction of 2-cyclopropylcarbonyl-, 2-(thiophen-2-yl)carbonyl-, and 2-arylcarbonylbenzonitriles with sodium tetrahydridoborate afforded 3-cyclopropyl-,…”
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Synthesis of symmetrical α-alkyl- and α-arylalkylbenzyl and diarylmethyl ethers by HCl-catalyzed intermolecular dehydration
Published in Russian journal of organic chemistry (01-10-2017)“…α-Alkyl-, α-arylalkyl-, and α-aryl-substituted benzyl alcohols were converted into the corresponding symmetrical dibenzyl ethers in the presence of a catalytic…”
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Hydrochloric acid as an efficient catalyst for intermolecular condensation of alcohols. A simple and highly efficient synthesis of unsymmetrical ethers from benzylic alcohols and alkanols
Published in Russian journal of organic chemistry (01-09-2015)“…Benzylic alcohols and diarylmethanols with electron-donating substituents in the aromatic ring reacted with aliphatic alcohols in the presence of a catalytic…”
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Transformations of N-(2-acylaryl)benzamides and their analogs under the Camps cyclization conditions
Published in Russian journal of organic chemistry (2016)“…N -(2-Acylaryl)benzamides and analogous N -substituted furan-2-, thiophene-2-, and cyclopropane-carboxamides in the systems EtONa–EtOH, EtONa–THF, and t -BuOK–…”
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ATRIAL FIBRILLATION ASSOCIATED WITH MYOCARDIAL INFARCTION OF DIFFERENT LOCALIZATIONS
Published in Rat͡s︡ionalʹnai͡a︡ farmakoterapii͡a︡ v kardiologii (01-01-2015)“…Aim. To specify the mechanism of atrial fibrillation (AF) development and to evaluate the function of left atrium after restoration of sinus rhythm in patients…”
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Initial Stages of Iron-Chromium Alloys Passivation in Acid Sulfate Solutions
Published in Protection of metals and physical chemistry of surfaces (01-11-2005)“…Upon jumpwise applied "maximal critical passivation potential" (that is, the most positive potential at which Fe-Cr alloys still remain in the state of…”
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Cave ice of Lake Baikal as an indicator of climatic changes
Published in Doklady earth sciences (01-10-2006)“…A study examined the cave ice of Lake Baikal as an indicator of climatic changes from 1976 to the present. Data suggest that the cave ice of Lake Baikal can be…”
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The Role of Ratings in the Development of Business Processes of Russian Banks
Published in Vestnik MGIMO-Universiteta (28-02-2012)Get full text
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Developing Concepts of Chromium Functions in the Passivation and Pitting of Fe-Cr Alloys
Published in Protection of metals and physical chemistry of surfaces (01-05-2004)“…The passivability and pitting resistance of Fe-(0-100)Cr alloys in deaerated acidic sulfate environments (at a concentration of sulfate ions of 0.1 to 1.0…”
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A new effective route for the synthesis of substituted 2h-indazoles
Published in Chemistry of heterocyclic compounds (New York, N.Y. 1965) (01-10-2009)“…A two-stage synthesis of 2H-indazoles has been established, based on consecutive reactions of reduction of 2-alkyl-, 2-cyclopropyl-, and…”
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Reaction of esters of 2-arylcyclo-propanecarboxylic acids with nitrous acid. Synthesis of aryl-substituted 3-ethoxycarbonyl-4,5-dihydroisoxazoles and 3-ethoxycarbonylisoxazoles
Published in Chemistry of heterocyclic compounds (New York, N.Y. 1965) (01-05-2009)“…Esters of 2-arylcyclopropanecarboxylic acids react with nitrous acid generated in situ with regioselective insertion of the nitrosyl cation into the…”
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Synthesis of 2-amino-4H-3,1-benzoxazines and 2-amino-4H-3,1-benzothiazines by the rearrangement of o-cyclopropylphenylureas and o-cyclopropylphenylthioureas
Published in Chemistry of heterocyclic compounds (New York, N.Y. 1965) (2008)“…Syntheses are reported for 2-cyclopropylphenylureas and 2-cyclopropylphenylthioureas and the behavior of these compounds was studied under conditions for the…”
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The influence of primary coronary balloon angioplasty on the systolic function of the left ventricle in patients with acute heart failure and myocardium infarction with low Q wave
Published in Vestnik hirurgii im. I.I. Grekova (2010)“…The investigation included 56 patients with MI of lower localization and acute left ventricle failure (ALVF). Group A included 33 patients with primary…”
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Tunnel scanning microscopy and spectroscopy in studying Fe-Cr stainless steels
Published in Protection of metals and physical chemistry of surfaces (01-05-2006)“…Scanning tunnel microscopy (STM) and scanning tunnel spectroscopy (STS) are used in studying highly pure iron and chromium and Fe-x%Cr (2.4 ≤ x ≤ 60 wt %)…”
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Silicon as an alloying element in ferrite stainless steels containing 8-13% Cr
Published in Protection of metals and physical chemistry of surfaces (01-12-2006)“…A jumpwise improving of the passivation ability and pitting-resistance of the Fe-(8-13)% Cr-(0.32-2.7)% Si alloys upon surpassing the limit of 14-15 at % by…”
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